2 2 8x x July 8, 2019 16 32 64 128 2 x 2 8x 16 2 8x x 2 5 X 2 2 8x 7 2 x 2 8x 15 8x 2 2 x 19 2 x 2 8x 10 $2 x 2 8x 7 0 2 x 2 8x 6 2 x 2 8x 3 2 x 2 8x 9 2 x 2 8x 0 8x 2 x 2 − 10x − 4 X 2 8x 2 0 complete the square X 2 8x 2 0 quadratic formula 7x 2 8x x 2