2 x 2 8x 9 July 8, 2019 16 32 64 128 X 2 8x 2 9 0 X 2 8x 9 factored X 2 8x 9 0 completing the square X 2 8x 9 complete the square X 2 8x 9 factorise X 2 8x 9 factor X 2 8x 97 0 X 2 8x 9 0 complete the square X 2 8x 96 0 X 2 8x 90 X 2 8x 9 0 теорема виета X 2 8x 9 0 solve 2x 2 8x 9 0 X 2 28x 96 0 2x 2 28x 960