Question

if X + 2 is a factor of x square + ax + 8 then a​

Answer 1

Answer:

x+2=0

x=-2

x square + ax +8

=-2 square+ -2a +8

=4-2a+8

=12-2a=0

12=-2a

a=12/-2

a=-6

Answer 2

Answer:

Hi

Step-by-step explanation:

Given p(x)=x²+ax+8

x+2=0

x=0-2

x=-2

p(-2)=(-2)²+a(-2)+8=0

4+(-2a)+8=0

4-2a+8=0

-2a+12=0

-2a=0-12

-2a=-12

2a=12

a=12/2

a=6

Therefore,the value of a is 6.

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