Question

If x + 1 is a factor of ar + + - 2x + 4a - 9, find the value of a​

Answer 1

Answer:

7/4

Step-by-step explanation:

since x+1 is a factor of the given polynomial so x=-1 will be its zero.

Now, P(-1)=0

P(-1) = -2x+4a-9 =0

P(-1) = -2(-1)+4a-9 =0

= 2+4a -9 =0

= 4a= 7

a= 7/4