3y 3 9y July 8, 2019 16 32 64 128 3y 3 9y 2 3y 3 9y 2 factored polynomial 3y 3 39y 2 90y Factor 3y 3 9y 2 2y 4 3y 3 9y 2 7x 3y 9yx 3 3y 3 4y 2 9y 12 3y 3 7y 2 9y 21 X 3y 3 3x 9y 2 X 3y 3 3x 9y 2 by substitution method X 3y 3 3x 9y 2 by elimination method Simplify 7x 3y 9yx 3
