Question

if x-1 is a factor of {2}^{5} - {a}^{2} {x}^{3} + 2x + a +1. find the value of a​

Answer 1

Since , x-1 us a factor of given eq.

So , let ,x-1 =0 = x=1

Putting x=1 in eq.

= 10 - 2a.3×1+2×1+a+1

=13-5a

Let, f(x) =0

=13-5a=0

=a=13/5