Question

If x-3 is a factor of 3x square - x square+ px+9 then 3p+2=?

Answer 1

x-3

x=3

f(x)= 3x²-x²+px+9

= 3*(3)²-(3)²+p*3+9

= 27-9+3p+9

= 27+3p

-27=3p

-9=p

then the value of p

3p+2

=3*-9+2

=-27+2

=-25