If x−2 is a factor of p(x)=ax−4, q(x)=bx2+3x+9 and r(x)=3x−c, what is the value of a+4b+c ?
The correct option is C -13
∵(x−2) is a factor of p(x)=ax−4
∵(x−2) is also a factor of q(x)=bx2+3x+9
∵(x−2) is also a factor of r(x)=3x−c,