Multiply by Conjugate

Calculate(Divide, multiply by conjugate):

• 12/5 − 4/5i

• -8/10i − 4/5 

• -4/5 + 12/5i

• 12/5 + 4/5i

Tags

CCSS.HSN.CN.A.3

Calculate(Divide, multiply by conjugate):

• -3/4 − 1/4i

• 3/4 + 1/4i

• -3/4 + 1/4i

• 3/4 − 1/4i

Tags

CCSS.HSN.CN.A.3

What is the conjugate you would multiply by?

• 5+2i

• 5-2i

• -5-2i

• -5+2i

Tags

CCSS.HSN.CN.A.3

What is the conjugate you would multiply by?

• -1-5i

• 1+5i

• 1-5i

• -1+5i

Tags

CCSS.HSN.CN.A.3

What is the denominator after multiplying and before simplifying?

• -3

• 29

• 21i

• 2+5i

Tags

CCSS.HSN.CN.A.3

What is the conjugate you would multiply by?

• 2+i

• 2-i

• -2+i

• -2-i

Tags

CCSS.HSN.CN.A.3

Refer to the above image, what is the conjugate of the denominator?

• 8 + 6i

• 6 + 8i

• 6 - 8i

• -6 +8i

Tags

CCSS.HSN.CN.A.3

What is the denominator after multiplying and before simplifying?

• 17

• 13

• 5i

• 15i

Tags

CCSS.HSN.CN.A.3

What is the numerator after multiplying and before simplifying?

• 2-6i

• 2+6i

• -2+6i

• -2-6i

Tags

CCSS.HSN.CN.A.3

What is the denominator after multiplying and before simplifying?

• -10

• -2i

• 2i

• 10

Tags

CCSS.HSN.CN.A.3