X 4 3x 2 28 July 8, 2019 16 32 64 128 X 4 3x 2 28 0 X 4 3x 2 28 factorise 4 x 5 )= 2 3x 28 Factor x 4 3x 3 6x 2 28x 24 Given f(x)=x+4/x^2-3x-28 which of the following is true 3x 2 x 4 5x 28