0 x 2 8x 13 July 8, 2019 16 32 64 128 X 2 8x 13 0 complete the square Solve x 2 8x 13 0 Lg x 2 8x 13 0 X 3 8x 2 13x 6 0 X 2 8x 13 0 quadratic formula X 2 8x 13 0 factorise 2^x + 8^x = 130 0 x 2 13 x 0