(y-3 z) (9 y+2 z)
(2y+1)(y−5)
(2y - 5)(y - 2)
(y - 2)(y - 7)
-8-5y = 12-9y 9y-5y - 12+8 4y = 20 y = 5
(y-3 z) (9 y+2 z)
9y**2-25yz-6z**2Multiply first and last terms9*-6=-54Find factors of -542,-27 = 2+-27=-25-2,27 = -2+27=25Rewrite9y**2-27zy+2zy-6z**2Factor pairs of terms9y**2-27zy = 9y(y-3z)2zy-6z**2= 2z(y-3z)9y**2-27zy+2zy-6z**2= 9y(y-3z)+2z(y-3z)Factor:9y(y-3z)+2z(y-3z) = (y-3z)(9y+2z)
(2y+1)(y−5)
(2y - 5)(y - 2)
(y - 2)(y - 7)
-8-5y = 12-9y 9y-5y - 12+8 4y = 20 y = 5
x=372/71 y=-21/9
If that's -18y2, the answer is (3x - 2y)(x + 9y)
x2 - y2 + 9x - 9y =(x2 + 9x) - (y2 + 9y) =x(x + 9) - y(y + 9)================================Another way to go after it:x2 - y2 + 9x - 9y =(x2 - y2) + 9x - 9y =(x + y) (x - y) + 9 (x - y) =(x + y + 9) (x - y)
9y cubed plus 2y squared
y(y-3)(y+3)
15y-15=0,y=1