Question

If x-3 is a factor of x^2-px-15 then find the value of p

Answer 1

Answer:

ifx-3 is factor thenp(x)=x^2-px-15

p(3)=0

p(3)=(3)^2-p(3)-15=0

9-3p-15=0

-3p-6=0

3p+6=0

3p=-6

p=-2

hope it helps