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WorksheetsQ2M9 - PETA II - Average Roound
Total questions: 10
Worksheet time: 15mins
Name
Class
Date
1.
Simplify the complex numbers: (6 − 6i) + (7 + 6i)
a)
13 + 12i
b)
-13 – 12i
c)
13
d)
13i
2.
Simplify the expression:
(1 + 5i) + (1 − 5i)
a)
2 + 10i
b)
2 + 10i2
c)
2
d)
−8
3.
Simplify the expression:
(5 + 14i) − (10 + 2i)
a)
5 −16i
b)
−5 + 16i
c)
5 − 12i
d)
−5 + 12i
4.
Simplify the expression:
(5 + 4i) − (−1 − 2i)
a)
6 +6i
b)
4 + 2i
c)
6 − 6i
d)
4 − 2i
5.
Simplify: (1 + 3i) + (7 − 2i)
a)
8+i
b)
i+8
c)
8+5i
d)
5i+8
6.
Simplify
(12 - 4i) + (-2 + 8i)
a)
8 + 104i
b)
10 + 4i
c)
14 - 4i
d)
10 - 12i
7.
What is the discriminant of -2x2 − x − 1 = 0
a)
76
b)
-7
c)
9
d)
none of these
8.
How many solutions will this quadratic equation x2+8x+16 has?
a)
2 real solutions
b)
2 imaginary solution
c)
1 solution
d)
3 solutions
9.
Write this equation x2 -6 = x in standard form.
a)
x2 +6x=0
b)
x2 -6x=0
c)
x2 -x -6 =0
d)
x2 +x -6
10.
What does i2 equal?
a)
-1
b)
√-1
c)
1
d)
-√1
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