Multiply Conjugates

Multiply: (4 - i)(4 + i)

• 17

• 17-8i

Tags

CCSS.HSN.CN.A.2

Multiply (5 + 2i)(5 - 2i)

• 21

• 29

• 29-10i

Tags

CCSS.HSN.CN.C.8

What type of number is the result of multiplying a complex number and its conjugate?

• Natural Number

• Imaginary Number

• Irrational Number

• Real Number

Tags

CCSS.HSN.CN.C.8

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 denominator after multiplying and before simplifying?

• 17

• 13

• 5i

• 15i

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 denominator after multiplying and before simplifying?

• -10

• -2i

• 2i

• 10

Tags

CCSS.HSN.CN.A.3

What is the numerator after multiplying and before simplifying?

• 1

• -5+2i

• -7i

• -4+i

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

What is the numerator after multiplying and before simplifying?

• 6-8i

• 12-6i

• 8+6i

• -3+4i

Tags

CCSS.HSN.CN.A.3