Complex Numbers

(3 + 2i) + (4 - 5i)

• 7 + 7i

• 1 - 3i

• 1 - 7i

• 7 - 3i

Tags

CCSS.HSN.CN.A.2

(-7 + 9i) + (2 - 10i)

• -5 + i

• -5 - i

• -9 + 1

• 9 - i

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

CCSS.HSN.CN.B.4

(4 - 2i) - (3 + 6i)

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

Tags

CCSS.HSN.CN.A.2

Choose the correct answer for the operation pictured.

• 7-13i
• 7-i
• 1-13i
• 1-i

Tags

CCSS.HSN.CN.A.2

What does i² equal?

• -1

• √-1

• 1

• -√1

Tags

CCSS.HSN.CN.A.1

The expression (2 + 3i)² is equal to

• -5
• -5 + 12i
• 13
• 13 + 12i

Tags

CCSS.HSN.CN.C.8

(3 + 8i)(-2 - i)

• 2-19i

• 23-i

• 34+5i

• 23-i

Tags

CCSS.HSN.CN.A.2

Solve
3x² - 5 = -446

• ±√-147
• 7i√3
• ±7i√3
• -7√3

Tags

CCSS.8.EE.A.2

Simplify:
√-108

• 3i√6
• 3i√20
• 6i√3
• 20i√3

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

CCSS.HSN.RN.A.2

(3i)(-2+4i)

• -6+12i
• -12-6i
• -2+7i
• 12+6i

Tags

CCSS.HSA.APR.A.1