WorksheetsWarm UP
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
What does i2 = ?
a)
-1
b)
√-1
c)
1
d)
-√1
2.
Simplify
√-25
√-25
a)
-5i
b)
5
c)
5i
d)
-5
3.
Simplify:
√-108
√-108
a)
3i√6
b)
3i√20
c)
6i√3
d)
20i√3
4.
Find the sum.
(5-2i) + (-7+8i)
(5-2i) + (-7+8i)
a)
-2+6i
b)
12+6i
c)
-35-16i2
d)
-35 -16i
5.
Multiply
(2i)(3i)
(2i)(3i)
a)
5i
b)
-5
c)
6i
d)
-6
6.
What value of c would make this a perfect sqaure trinomial?
x2 +8x + c
x2 +8x + c
a)
4
b)
16
c)
64
d)
-16
7.
Find the value of "c" that completes the square.
x2+8x+ca)
-4
b)
4
c)
8
d)
16
8.
Factor the polynomial.
x2-4x-32
x2-4x-32
a)
(x-8)(x+4)
b)
(x-4)(x-32)
c)
(x+3)(x-4)
d)
x+2)(x+5)
9.
What are the solutions to this equation?
(3x-2)(5x+1)=0
(3x-2)(5x+1)=0
a)
x=5/2,-1/3
b)
x=1/5,-2/3
c)
x=1/3,-5/2
d)
x=2/3,-1/5
10.
Which is the correct factoring and solutions?
2h2+11h+5 = 0
a)
(2h +5)(h + 1); h = −25 , −1
b)
(2h +1)(h + 5); h = −21, −5
c)
(2h +2)(h + 3) h = −1, −3
d)
(2h +3)(h + 2) h = −23, −2
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