Question

if p(x)=x^1+x2+ax+115 is exactly divisible by(x+5) then a=?
please answer this question​

Answer 1

Step-by-step explanation:

=)x^2 + x2 + ax + 115

=) x+5=0

=) x= -5

By fitting the value

=) (-5)^1 + (-5)^2 + (-5a) +115= 0

=) -5 + 25-5a + 115 = 0

=) 135 - 5a = 0

=) -5a = 135

=) a = 135/-5

a = -27

THIS IS THE ANSWER