Question

if (x+9) is a factor of the polynomial (x³+13x²+mx-45) then find the value of `m'​

Answer 1

YOUR ANSWER IS ABOVE.

Step-by-step explanation:

PLEASE MARK ME AS BRAINLIEST.

Answer 2

Answer:

m = 31

Step-by-step explanation:

if (x + 9) is a factor of the polynomial (x³ + 13x² + mx - 45) , then (- 9) is the zero of given polynomial

(- 9)³ + 13(- 9)² + mx - 45 = 0

- 729 + 1053 + m(- 9) - 45 = 0

- 9m + 279 = 0

9m = 279

m = 31