5x 2 1 4x 7 July 8, 2019 16 32 64 128 5x 2 1 4x 7 quadratic formula 5x 2 x 1 4x 13 x 7 6x 2 5x 4 )= 1 7 4x 3 5x 3 4x 1 )= 7 2 7x 2 (- 4x 2 6x 1 )+( 5x 7 5 2 5x )- 7 4x 1 )= 6x 42 4x 7 2 5x 1 6 x 5 2 5x 1 4x 7x 10 Find 2 5x 1 4x 7x 10 5x 2 4x 1 7x 2 5x 2 4x 7 1 x 7 6 5x 2 1 4x 12 8 7 5x 2 1 4x 12 3x 2 5x 1 4x 2 7x 19 4x 2 5x 1 3 7 x