1 x 4 1 x 7 11 30 July 8, 2019 16 32 64 128 1 x 4 1 x 7 11 30 by factorisation 1 x 4 1 x 7 11 30 by quadratic formula 1 x 4 1 x 7 11 30 ko hal kijiye Solve for x 1 x 4 1 x 7 11 30x