2x 2 5x 2 7 July 8, 2019 16 32 64 128 2x 2 5x 7 0 2x 2 5x 7 )( x 1 )= 0 2x 2 5x 7x 2x 5x 2 7 0 через дискриминант 2x 2 5x 7 x 1 2x 3 5x 2 7x 2 X 2 )( 2x 2 5x 7 3x 2 2x 2 5x 7 2x 2 5x 7 3 2x 2 25x 72 1 2x 2 2x 2 5x 7 2x 2 5x x 2 7x 12 2x 2 5x 7 10x 2 7x 1 2x 2 2y 2 5x 7y 3 2x 2 5x 7 )+( 7x 2 3