X 2 5x 15 factor July 8, 2019 16 32 64 128 X 3 3x 2 5x 15 factor X 2 5x 15 0 factorise Factor x 2 3x 5x 15 Factorise 15 x y 2 5x 5y Factor completely x^3 + 5x^2 - 3x - 15