Radicals to Complex Numbers

• A
• B
• C
• D

To simplify this problem we must multiply the numerator and denominator by the _____________.

• Radical

• Reciprocal

• Opposite

• Conjugate

Simplify.

• A

• B

• C

• D

√-81 ⋅ √-16

• 36

• -36

• 36i

• -36i

• 7

• -7

• 7i

• -7i

Simplify.

• 
• 
• 
• 

• 15i

• -15i

• No Solution

• 15

Simplify.

• 
• 
• 
• 

√-7⋅√21

• 7i√3

• -7√3

• √-147

• 3i√7

• A
• B
• C
• D