Question

if the polynomial x⁴-2x³-8x²+mx-5 is exactly divisible by (x+3),find m

Answer 1

Answer:

x+3=0

x=(-3)

p(x) =x^4-2x^3-8x^2+mx -5=0

p(-3)= (-3)^4 -2(-3)^3-8(-3) ^ 2 +m(-3)-5 =0

81 +54 -72-3m-5=0

135 -77 -3m=0

58-3m =0

-3m = -58

3m = 58

m= 19.333 approx

Answer 2

Answer:

m is equal to 58/3

Step-by-step explanation:

I hope it's Help you