Multiply by Complex Conjugates

What is the conjugate you would multiply by?

• 5+2i

• 5-2i

• -5-2i

• -5+2i

What is the conjugate you would multiply by?

• 2+i

• 2-i

• -2+i

• -2-i

What is the conjugate you would multiply by?

• -1-5i

• 1+5i

• 1-5i

• -1+5i

What is the denominator after multiplying and before simplifying?

• 17

• 13

• 5i

• 15i

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

What is the denominator after multiplying and before simplifying?

• -3

• 29

• 21i

• 2+5i

• A

• B

• C

• D

What is the denominator after multiplying and before simplifying?

• -10

• -2i

• 2i

• 10