Question

if the polynomial x⁴-2x³-8x²+ Mx-5 is exactly divisible by x+3, then M is equal to; ​
solve this problem with full solution​

Answer 1

Answer:

Let , p(x)=x

4

−2x

3

+3x

2

−mx+5

If (x−3) exactly divides p(x), then for x=3, p(x)=0

i.e. p(3)=0

3

4

−2×3

3

+3×3

2

−3m+5=0

81−54+27−3m+5=0

−3m+59=0

m=

3

59

Explanation:

mark m brainliest mujhe nahin raha tha

Answer 2

I hope it helps you thank you