4x 2 15x 4 July 8, 2019 16 32 64 128 4x 2 15x 4 0 4x 2 15x 4 factored 4x 2 15x 4 solve for x 4x 2 15x 4 factor 4x 2 5x 3 15x 4 12x 3 15x 2 4x 4 factor the quadratic expression completely Factorise 4x 2 15x 4 2 4x 5 )= 15x 4 15x 2 4x 4 factored completely 4x 3 4x 2 15x 18 0