Find the Conjugate

Use the Complex Conjugate Root Theorem to state another complex solution. Given that -2-5i is a root. 

• -2-5i

• -2+5i

• 2+5i

• 5i

Tags

CCSS.HSN.CN.A.3

If a+bi is a root of a polynomial, then _______ is also a root.

• i²

• a-bi

• a+bi

• -i²

Tags

CCSS.HSN.CN.C.9

Name the Theorem
If P(x) is a polynomial with rational coefficients, then the irrational roots of P(x) = 0 occur in conjugate pairs.

• Binomial Theorem

• Factor Theorem

• Conjugate Root Theorem

• Rational Root Theorem

Find the conjugate of a + bi

• a - bi

• -a + bi

• bi + a

• -a - bi

Tags

CCSS.HSN.CN.A.3

Find the conjugate of:
5 + 7i

• 5 − 7i

• -5 − 7i

• -5 + 7i

Tags

CCSS.HSN.CN.A.3

Find the conjugate of:
-4 − 8i

• -4 + 8i

• 4 − 8i

• 4 + 8i

Tags

CCSS.HSN.CN.A.3

What is the conjugate of the following...
7-2i

• 7 - 2i

• -7 - 2i

• -7 + 2i

• 7 + 2i

Tags

CCSS.HSN.CN.A.3

What is the conjugate of -2i + 7

• -2i - 7

• 2i - 7

• -7 + 2i

• 7 + 2i

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 conjugate of i + 4?

• i + 4

• i - 4

• -i-4

• -i+4

Tags

CCSS.HSN.CN.A.3