Categorizing Real and Complex Numbers

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

Simplify:
√-108

• 3i√6

• 3i√20

• 6i√3

• 20i√3

Find the sum.
(5-2i) + (-7+8i)

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

Tags

CCSS.HSN.CN.A.2

What complex number is represented by the graph?

• -3-i

• -3+i

• 1+3i

• 1-3i

Tags

CCSS.HSN.CN.B.4

What complex number is shown on the graph?

• (-2,-3)

• -2-3i

• 2-3i

• 3i-2

Tags

CCSS.HSN.CN.B.4

Multiply: 
(4 – 3i)(7 + 2i)

•  22 - 13i

•  28 - 19i

•  34 - 13i

•   -34 - 29i

Tags

CCSS.HSN.CN.A.2

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

• (4,0)

• 4 + 4i

• -4(i²)

• 4i

Tags

CCSS.HSN.CN.B.4

What is the conjugate of -2+5i?

• -5+2i

• -2-5i

• 2+5i

• 5-2i

Tags

CCSS.HSN.CN.A.3

Simplify:  (4+2i)/(3-i)

• 1-i

• 1+i

• 10+10i

• 1+10i

Tags

CCSS.HSN.CN.A.3