Question

Page :
Date :
Find the value of a and b
that P(x)=x4+ax³-7x²-8x+b

is ė divisible
(x+2)
and (x+3).

exactly
by​

Answer 1

Answer:

hi mate

the answer was not right

so sorry mate

please mark me in brainlist

Answer 2

x+2=0

x=-2

x+3=0

x=-3

P(-2)=(-2)^4+a(-2)^3-7(-2)^2-8(-2)+b

=16+(-8)a-28-(-16)+b

=(-8a)-28-b _____1

P(-3)=(-3)^4+a(-3)^3-7(-3)^2-8(-3)+b

=81+(-27)a-(-63)-(-24)+b

=81-27a+63+24+b

= 81-27a+87+b

= -27a+7+b______2

1-2

-8 a -28-b

-27a+ 7+b

_________

-19a-21

__________

a=(-19)

b=21