Font size
WorksheetsA2-CHAPTER 3 TEST
Total questions: 190
Worksheet time: 9hrs 45mins
7
-7
7i
-7i
7
-7
7i
-7i
2i√6
8i√3
-2√6
-2i√6
6i√5
-8√5
8i√5
-8i√5
-24i√7
24i√7
-24√7
24√7
i
-1
1
-i
2−−9
2-3i
2+3= 5
2+3i
2 - 3= -1
12i2
−12
12
i12
-12
−−15
−15
−15i
−i15
15
−121
11i
121i
i11
i121
−48
16i
i48
2i12
4i3
−72
i72
72i
6i2
36i2
−−98
−7i2
7i2
49i2
−72
−3−300
100i3
−30i3
10i3
−303
−125
5i5
−55
−5i5
25i5
3−72
9i8
6i12
18i2
−182
√-36 + √-100
The imaginary number i is defined as
-1
−1
−4
(−1)2
Which of the following is equivalent to −128 ?
82
8i
−82
8i2
(10+ 15i)-(48 - 30i)
2i - 7i + 10
(5-2i) + (-7+8i)
(10+ 15i)-(48 - 30i)
(3 + 2i) + (4i + 6)
(4 + 7i) - (3 + 2i)
(4 − 7i) − (-3 + 6i)
(1 − 2i) + (-4 + 2i)
(1 − 2i) + (-4 + 2i)
Why do we get imaginary numbers?
When a square root has a positive on the outside
3x214xWhen a square root has a negative on the outside −3x214x
When a square root has a positive on the inside 14
When a square root has a negative on the inside −14
What is the simplifies form of (11 – 7i) – (–3 + 12i)
8 – 19i
8 + 5i
13 – 19i
14 –19i
(5x – 2i) + (–7x + 8i)
–2x + 6i
12x + 6i
–35x – 16i2
–35 – 16i
(10x + 3i) – (2x – 9i)
20x – 27i
12x - 7i
8x + 12i
20x – 27i2
(10+ 15i)-(48 - 30i)
(10 + 3i) - (12 - 7i)
(5i + 6) + (-3 + 5i)
Add (−6−8i)+(−1−2i)
−7−10i
5+6i
−2i
−17−2i
Add (1+6i)+(5+7i)
−6+i
4+i
6+i
6+13i
Add (−7+7i)+(−2+3i)
−9+10i
−11+10i
5−4i
−5−4i
Add (1+i)+2+2i
5+3i
1+i
3+3i
5+2i
Subtract (8+5i)−(−4+3i)
12−8i
4+8i
12+2i
−4−2i
Subtract (−6+2i)−(7−i)
−13−i
−10+i
−13+3i
−7+i
Subtract (−6−i)−(−4−6i)
−4+6i
10+7i
−10+5i
−2+5i
(4 – 3i)(-7 – 2i)
(2-5i)(2+5i)
-4 (13 + 5i)
(1 − 2i)(6 + 5i)
(4 + 3i)(4 − 3i)
2i(4 - 3i)
-3i(4 + 2i)
(2 - 3i)(5 + 4i)
(-3i)(4i)(-5i)
(3−i)(2+4i)=
10+10i
1−5i
6−4i2
10
Multiply:
(4 – 3i)(–7 – 2i)
FYI - your calculator can do this one :)
–23 + 13i
–23 – 29i
–34 + 13i
–34 – 29i
30
30i
-30
-30i
(7+4i)(−2+5i)
−34+27i
6+27i
−14+27i+20i2
−34+42i
(4 – 3i)(-7 – 2i)
Simplify (2i)(3i)2
-18
18i
-18i
-6
6i
Simplify (–6i)(3i)
–18
–18i
18
–18i2
Simplify (10i)2
10i
−10i
100
−100
Simplify: −i(−4+8i)
8 + 4i
8 - 4i
-8 - 4i
-8 + 4i
−i(8i)
-9i
-8
8
-8i
Simplify: (5+4i)(−7−5i)
55 - 3i
15 - 53i
-55 - 3i
-15 - 53i
Simplify: (−4 − 8i)2
-48 + 64i
81
-55 + 48i
121
Simplify: 6i(−5+10i)
−60−30i
30i+60
−30i+60i2
60i−30
Solve for x.
x2 = 36
x = ± 6
x = ± 18
x = 6
x = 18
Solve for x.
3x2 = 48
x = ± 4
x = ± 12
x = ± 16
x = √16
Solve for x.
x2 - 49 = 0
x = ± 7
x = √49
x = ± 49
(x - 7)(x + 7) = 0
Solve for x.
16x2 - 9 = 0
x = 1.333
x = ± (4/3)
x = ± (3/4)
x = (9/16)
a2 + 9 = 9
x2 -4 = 77
9
-9
No Real Solutions
±9
5b2 - 4 = 41
-9p2 = -576
4m2 + 10 = 38
4r2−10=−26
2
−4
±2i
±i2
3r2+7=37
±10
±10
10
±5
−1+5p2=−86
±17
±17i
−17
±i17
10x2−6=1434
±12
±12
±23
12
49n2+6=70
±78
±78
78
±87
Solve 36x2+169 = 0 .
x=±136i
x=±136
x=±613i
x=±613
Solve by taking the square root: -9k2 = 225
4i
4, -4
25i, -25i
-5i, 5i
Solve by taking square roots:
2b2 - 4 = -166
b = 9i, b = -9i
b = 3, b = -3
b = 9, b = -9
b = 3i, b = -3i
x2 + 4 = -77
9i
-9i
No solution
±9i
Solve by taking square roots:
-5b2 - 4 = 41
b = 9, b = -9
b = 3i, b = -3i
b = 3, b = -3
b = 9i, b = -9i
Complete the square for
x2 + 12x + ____
(find the missing number in the blank)
x2 + 12x + 144
x2 + 12x + 36
x2 + 12x - 36
x2 + +12x - 144
Complete the square for
x2 - 14x + ____
(find the missing value that goes in the blank)
- 196
49
- 49
28
Complete the square for
x2 + 6x + ____
(find the missing value that goes in the blank)
9
12
36
- 9
x2 +8x + c
x2 + 2x + c
x2 + 26x + ___
x2 + 16x + 64
x2 + 6x + ____
x2 + 14x + ____
x2 + 10x + ____
a2 + 10a + 21 = 0
n2 - 2n - 3 = 0
n2 = 18n + 40
k2 − 12k + 23 = 0
v2 + 6v − 59 = 0
x2 + 6x = 5
Complete the square:
x2+6x = 0
(x+3)2=9
(x+3)2=3
(x+3)2=6
(x+6)2=36
a2+14a−22=10
a= 81
a=9 a=-9
a = 2 a = -16
2b2+20b+58=10
b=-1/4 b=1/6
b=-4 b=-6
b=4 6 b=6 4
Complete the square. (What goes in the blank?)
x2 + 6x + ____
x2 + 6x + 9
x2 + 6x - 36
x2 + 6x + 36
x2 + 6x - 9
x2 + 3x +9
Solve the equation by completing the square: 7x2 - 14x - 56 = 0
-6 and 12
-2 and 4
4 only
3∓√10
What is the first step to complete the square for this quadratic equation?
2y2 + 20y + 18 = 0
factor the LEFT
divide by 2
subtract 18 from both sides
add a blank/box to both sides
x2 + 4x - 16 = 0
n2 = 18n + 40
n2 - 2n - 3 = 0
Complete the square:
x2+6x = 0
(x+3)2=9
(x+3)2=3
(x+3)2=6
(x+6)2=36
Complete the square:
x2+10x = 11
(x+5)2=36
(x+5)2=25
(x+10)2=100
(x+10)2=111
Complete the square:
x2−8x = 0
(x−4)2=16
(x+4)2=16
(x−4)2=−16
(x−8)2=64
Complete the square:
x2−20x = 21
(x−10)2=121
(x+10)2=121
(x−10)2=−100
(x−20)2=100
Complete the square:
x2−4x −5= 0
(x−2)2=9
(x+2)2=4
(x−2)2=4
(x−4)2=21
Complete the square:
y2+6y = 0
(y+3)2=9
(y+3)2=3
(y+3)2=6
(y+6)2=36
Complete the square:
y2−12y =0
(y−6)2=36
(y−6)2=12
(y−6)2=0
(y−12)2=144
Complete the square:
y2+16y =17
(y+8)2=81
(y+8)2=17
(y+8)2=64
(y+4)2=33
Complete the square:
y2−2y =8
(y−1)2=9
(y−1)2=8
(y−1)2=1
(y−2)2=12
Complete the square:
y2+4y +3= 0
(y+2)2=1
(y+2)2=4
(y+2)2=−3
(y+4)2=13
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
What is the discriminant of -2x2 − x − 1 = 0
76
-7
9
none of these
If the discriminant is positive, then the solution will be
one real solution
two real solutions
no real solutions
one imaginary solution
______________
How many solutions does it have?
y = x2 +5x +7, match each leading coefficient with its correct letter
______________
How many x-intercepts does it have?
For the function above, is the discriminant positive, negative, or zero?
For the function above, is the discriminant positive, negative, or zero?
(x+10)(x-2) = 0
How many solutions will this quadratic equation x2+8x+16 has?
2 real solutions
2 imaginary solution
1 solution
3 solutions
Given the equation 10x2 -6x=0, what is the value of C?
0
-6
10
x
Write this equation x2 -6 = x in standard form.
x2 +6x=0
x2 -6x=0
x2 -x -6 =0
x2 +x -6
Given that the value of A=-5 , B=1 and C=-5, solve for the discriminant.
-99
99
101
-100
Solve for the discriminant of the given equation -2x2 -6x=0
-36
36
0
44
If the discriminant is equal to 0, how many solutions are there?
No solutions
1 Solution
2 Solutions
Infinite solutions
If the discriminant is equal to 4, how many solutions are there?
No Solutions
1 Solution
2 Solutions
Infinite Solutions
If the discriminant is equal to -2, how many solutions are there?
No Solutions
1 Solution
2 Solutions
Infinite Solutions
What is the discriminant and how many solutions would this quadratic have?
-4x2 - 8x - 8 = -4
0, No Solutions
0, 1 Solution
128, 2 Solutions
128, 1 Solution
What does the discriminant tell us about a quadratic function?
The maximum or minimum value
The y-intercept
The number and type of solutions
The axis of symmetry
If the discriminant is positive, then the nature of solution will be
one real solution
two real solutions
two imaginary solutions
all real numbers
Determine the value of the discriminant
x2 + 7x + 13=0
101
3
-101
-3
For the function below, what is the discriminant?
x² + 8x + 16 = 0
4
-4
0
2
Describe the number and type solutions for the following:
x² + 8x + 16 = 0
if the discriminant is equal to 0
2 real solution
2 imaginary solution
1 real solution
What is the discriminant of 6x2 − 2x − 3 = 0
76
29
-68
0
Describe the number and type solutions for the following:
6x2 − 2x − 3 = 0
if the discriminant is equal to 76
2 real solution
2 imaginary solution
1 real solution
What is the discriminant of -2x2 - x - 1 = 0
8
-7
9
0
Solve the equation by factoring.
{−3, −4}
{−6, −1}
{8, 1}
{−1, −2}
Solve the equation by factoring.
{2, −1}
{−5, 5}
{−4, 1}
{−8, 6}
Solve the equation by factoring.
{3, −5}
{−3, 2}
{−5, −3}
{3, −4}
Solve the equation by factoring.
{2, 6}
{2, 0}
{−2, 0}
{−5, 1}
Solve the equation by factoring.
{8, 2}
{−8, 2}
{−5, −1}
{8, −2}
Solve the equation by factoring.
{−3, 8}
{3, 0}
{−3, 2}
{8, 3}
Solve the equation by factoring.
{4, −6}
{1, −2}
{−7, 5}
{7, 3}
Solve the equation by factoring.
{−3, 2}
{−3, −2}
{3, −6}
{3, 2}
Solve the equation by factoring.
{1, −3}
{−3, −5}
{5}
{−4, 7}
Solve the equation by factoring.
{−1, 5}
{3, −7}
{−4, 7}
{6, 7}
x2 + 9x + 20 = 0
x2 + 7x + 12 = 0
x2 + 13x + 12 = 0
k2 - 2k - 24
x2 + 13x + 12 = 0
x2 -17x - 60
Solve: p2−2p−35=0 (select all answers that apply!)
p = –5
p = 7
p = 5
p = –7
Solve: p2−4p−32=0 (select all answers that apply!)
p = 8
p = –4
p = –8
p = 4
Solve: b2+2b−15=0 (select all answers that apply!)
b = 3
b = –5
b = –3
b = 5
Solve
x2+7x+12=0x={3, 4}
x={−3, −4}
x={1,6}
x={−1,−6}
Factor and Solve
x2−2x−35=0x= +7, −8
x=+7, −5
x=−5, +7
x=8
Solve the equation by factoring:
x2 - 6x = -8
x=2 and x=4
x= -2 and x= -4
x= -2 and x=4
x=2 and x= -4
Solve: 20x=5x2+20
x=0 and x=2
x=−2
x=2
x=2 and x=−2
