Intro to Complex Numbers

Find the sum of 7+8i and 6-2i

• 13 + 6i

• 1 + 6i

• 13 + 10i

• 1 + 10i

√-25

• -5i

• 5

• 5i

• -5

Simplify
2i - 7i + 10

• -5i+10

• 5i

• 9i+10

• 5i+10

What is the simplified form of (-9 + 5i) + (3 -2i)

• -12 + 31i

• -6 + 3i

• -11 + 7i

• 5 - 3i

What is the simplifies form of (11 - 7i) - (-3 + 12i) (remember to distribute the negative)

• 8 - 19i

• 8 + 5i

• 13- 19i

• 14 -19i

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i

• 7 − i 

• 1 − 13i

• 1 − i 

Simplify: √-64

• -8

• 8i

• -8i

• 8

Simplify -√-8

• -i√8

• -2i√2

• 2i√2

• -8i

Simplify √-28

• -√28

• -2i√7

• 2i√7

• 28i

Simplify √-12

• 3i√4

• 2i√3

• i√12

• 3i√2