X 2 5x 75 July 8, 2019 16 32 64 128 X 2 5x 750 0 X 2 5x 75 0 X 2 5x 750 0 by factorisation X 3 3x 2 25x 75 X 3 3x 2 25x 75 0 X 2 25x 75 X 2 25x 7500 Factorise x 2 5x 750 Solve x 2 5x 750 0 X 3 7x 2 5x 75 X 3 3x 2 25x 75 factored 5 x 2 5x 3 750 X 6 2 5x 123 75 5x 75 2 x 15
