Practice
Factor using Difference of Two Squares.a) 16x4 −169y2
(4x2 +13y)(4x2 −13y)
(4x2 +13y)(4x2 −13y)
b) 49x2 −81y4
(7x +9y2)(7x −9y2)
(7x +9y2)(7x −9y2)
c) 64x2 −9y2
(8x +3y)(8x −3y)
(8x +3y)(8x −3y)
d) 81x2 −196y2
(9x +14y)(9x −14y)
(9x +14y)(9x −14y)
e) 81x2 −16y2
(9x +4y)(9x −4y)
(9x +4y)(9x −4y)
f) 64x2 −81y2
(8x +9y)(8x −9y)
(8x +9y)(8x −9y)
g) 49x2 −4y12
(7x +2y6)(7x −2y6)
(7x +2y6)(7x −2y6)
h) 81x4 −121y2
(9x2 +11y)(9x2 −11y)
(9x2 +11y)(9x2 −11y)
i) 81x2 −16y2
(9x +4y)(9x −4y)
(9x +4y)(9x −4y)
j) 4x12 −49y2
(2x6 +7y)(2x6 −7y)
(2x6 +7y)(2x6 −7y)