Question

For what value of a is (x-5) a factor of x^3-3x^2+ax-10

Answer 1

if ( x-5 ) is a factor then (x-5) =0
and x= 5
now let
x^3-3x^2+ax-10=0
put the value of x in this equation
125-75+5a=10
a= -8

Answer 2

hope you understand mark as brainiest