factor by grouping
y2-6+8=
(y-2) (y-4)
square root of 36
=6
44
256
7x2 + 9x +2
(7x+2) (x+1)
square root of 81
9
-35
-729
4x2 +13x+3
(4x+1) (x+3)
square root of 49
7
92
81
wz + 6z - 4w - 24
Z(w+6)-4(w+6)
square root of 121
11
113
1331
x2 - 6x +9
(x-3)(x-3)
square root of 64
8
-82
64