4 12x 9x 2 July 8, 2019 16 32 64 128 12x 4 9x 22 12x 4 9x 2 0 Factor 4 12x 9x 2 Factor completely 4 12x 9x 2 4x 4 12x 3 9x 2 0 4 3x )( 9x 2 12x 16 9x 2 12x 4 0 дискриминант Y 12x 2 9x 4 9x 2 12x 4 121 9x 4 12x 2y 4y 2 12x 4 9x 22 solve for x 1 4 12x 24 )- 9x 9x 4 12x 23
