5x 15 4 x )= 0 July 8, 2019 16 32 64 128 15 /( 4 x )( 2 5x 0 X 4 3x 3 5x 15 0 15 4 5x x 9x 2 4 )= 0 X 4 3x 3 5x 15 0 orden superior 5x 2 4x 15 0 quadratic formula 5x 2 4x 15 0 5x - 15 = 0