2 2x 4 9 July 8, 2019 16 32 64 128 2 2x 4 )= 9 x 2 2x 4 )+ 9 13 2x 2 4 9x 2x 2 9x 4 factored 2x 2 9x 4 0 quadratic formula 2x 2 9x 4 0 solve by factoring 2 2x 4 9 2 x )= 0 2x 2 9x 4 0 дискриминант 2x 2 9 4 0 2x 2 x 4 9x 3 5 2 x 2 )+ 2x 4 9 2 x 3 )+ 4 2x 9 2x 2 − 9x 4 factor 2x 4 9x 2 7 3 2x 2 9x 4