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Worksheets2.4 - 2.6 Quiz Review
Total questions: 18
Worksheet time: 3570secs
Name
Class
Date
1.
−1=
a)
i
b)
−1
c)
−i
d)
1
2.
−64
a)
8i
b)
−8
c)
8
d)
±8i
3.
Subtract the two complex numbers:
(14+9i)−(23+11i)
a)
−9−20i
b)
37+20i
c)
−9+20i
d)
−9−2i
4.
(3−i)−(2+4i)=
a)
10+10i
b)
1−5i
c)
6−4i2
d)
10
5.
−12
a)
2i3
b)
4i3
c)
−23
d)
−4i3
6.
−18
a)
3i2
b)
9i2
c)
−32
d)
−9i2
7.
a)
30
b)
30i
c)
-30
d)
-30i
8.
(3i)(-2+4i)
a)
-6+12i
b)
-12-6i
c)
-2+7i
d)
12+6i
9.
(3−i)(2+4i)=
a)
10+10i
b)
1−5i
c)
6−4i2
d)
10
10.
Solve: x2+36=0
a)
±6
b)
−6
c)
6i
d)
±6i
11.
a)
{49,-49}
b)
{8,-8}
c)
{7,-7}
d)
No Solution
12.
Solve using square roots.
a)
±81
b)
±9
c)
±3
d)
No real solution
13.
-5x2 = -50
a)
± 5
b)
± 10
c)
± √10
d)
-10
14.
Solve using square roots.
5b2 - 4 = 41
5b2 - 4 = 41
a)
b = 9, b = -9
b)
b = 3, b = -3
c)
b = 8, b = -8
d)
no solution
15.
Solve
(x-5)2 = 25
(x-5)2 = 25
a)
±0
b)
±10
c)
10, 0
d)
-10, 0
16.
Solve for x:
(x+6)2=49
(x+6)2=49
a)
x=7,12
b)
x=±7
c)
x=1,-13
d)
x=43,-55
17.
Add the two complex numbers:
(−7+16i)+(−18+13i)
a)
−23−5i
b)
−25−29i
c)
−25+29i
d)
−11+29i
18.
(−1−2i)(−6−6i)
a)
−7+16i
b)
24+24i
c)
12+12i
d)
−6+18i
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