How to solve x 2 4x 12 July 8, 2019 16 32 64 128 How to solve x 2 4x 12 0 How to solve x 3 3x 2 4x 12 0 How to solve x 3 3x 2 4x 12 Solve x 2 4x 12 0 by completing the square Solve x 2 4x 12 0 using quadratic formula Solve x 2 4x 12 0 by factoring How to solve 2 4x 2 )= 4x 12 x 1