SOLUTION: Directions: information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.
Degree 3; zeros: -9, -5-i
Algebra.Com
Question 1150007: Directions: information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.
Degree 3; zeros: -9, -5-i
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
The remaining zero is the complex number -5+i, conjugate to the given -5-i.
It is so, because every polynomial with real coefficients has the roots as conjugate complex numbers in pairs.
RELATED QUESTIONS
Directions: information is given about a polynomial f(x) whose coefficients are real... (answered by ikleyn)
Information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by rwm)
information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by jsmallt9)
Information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by josgarithmetic)
Information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by josgarithmetic,greenestamps)
Information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by josgarithmetic,MathTherapy)
8) Information is given about a polynomial f(x) whose coefficients are real numbers.... (answered by josgarithmetic)
Information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by Fombitz)
Information is given about a polynomial f(x) whose coefficients are real numbers. Find... (answered by josgarithmetic)