X 2 2 49 0 July 8, 2019 16 32 64 128 X 2 7 )( x 2 49 ) 0 X 2 49 0 solve by factoring X 2 49 0 quadratic formula X 2 49 0 неравенство X 2 49 0 factored X 2 49 0 discriminant X 2 49 0 factoring X 2 y 2 8x 8y 49 0 2 49 x 2 X 2 −49 0
