Solve Complex Numbers

The expression (2 + 3i)² is equal to

• -5

• -5 + 12i

• 13

• 13 + 12i

Tags

CCSS.HSN.CN.C.8

(5-i)(5-i)

• 25-9i

• 26-10i

• 25-11i

• 24-10i

Tags

CCSS.HSN.CN.C.8

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

• 2-19i

• 23-i

• 34+5i

• 23-i

Tags

CCSS.HSN.CN.A.2

Tags

CCSS.HSN.CN.C.8

Which expression is equivalent to (-6 + i)²?

• 36 - 12i

• 35 - 12i

• 36i²

• 35i

Tags

CCSS.HSN.CN.C.8

What is the product of the complex conjugates -7 - 2i and -7 + 2i?

• 53

• 50

• 52

• 51

Tags

CCSS.HSN.CN.C.8

(-5+10i)(-5-10i) = 125

• True

• False

Tags

CCSS.HSN.CN.C.8

• 15

• 17

• 15 + 4i

• 15 + 8i

Tags

CCSS.HSN.CN.C.8

If w is a complex cube root of unity, find the value of :

• 60

• 55

• 30

• 65

Find the product of

(6 - i) (6 + i)

• 38

• 37

• 12

• -12

Tags

CCSS.HSN.CN.C.8