Complex Number Exam

Simplify: 
(7 + 2i)(9 - 6i)

• 75-24i

• 63 - 24i  - 12i²

• 51 - 24i

• 58 + 60i

Tags

CCSS.HSN.CN.A.2

Simplify 
√-25

• -5i

• 5

• 5i

• -5

√-108

• 3i√6

• 3i√20

• 6i√3

• 20i√3

Simplify
2i - 7i + 10

• -5i+10

• 5i

• 9i+10

• 5i+10

Tags

CCSS.HSN.CN.A.2

Simplify
3i - (4 + 7i)

• -4 + 10i

• 21 - 12i

• 4 - 10i

• -4 - 4i

Tags

CCSS.HSN.CN.A.2

Multiply
(2i)(3i)

• 5i

• -5

• 6i

• -6

Tags

CCSS.HSN.CN.A.2

Multiply
(3i)(-2+4i)

• -6+12i

• -12-6i

• -2+7i

• 12+6i

Tags

CCSS.HSN.CN.A.2

What is the simplified form of (8 -3i)²?

• 73

• 16 - 6i

• 55 + 48i

• 55 - 48i

Tags

CCSS.HSN.CN.C.8

What complex number is represented by the graph?

• -3-i

• -3+i

• 1+3i

• 1-3i

Tags

CCSS.HSN.CN.B.4

Match the expression to the graph shown in the complex plane.

• -2i-3i

• (0,-5)

• -6i

• -2(3i)

Tags

CCSS.HSN.CN.B.4