Solve 4x 2 20x 0 July 8, 2019 16 32 64 128 Solve 4x 2 20x 25 0 Solve 4x 2 20x 21 0 Using the quadratic formula solve 4x 2 20x 21 0 Solve 4x 4 20x 3 33x 2 20x 4 0 Solve 4x = 20 Solve 4x ^ 2 - 25 0 Solve 4x ^ 2 -
