Practice
Factor using Difference of Two Squares.a) 81x2 −25y2
(9x +5y)(9x −5y)
(9x +5y)(9x −5y)
b) 49x2 −64y8
(7x +8y4)(7x −8y4)
(7x +8y4)(7x −8y4)
c) 16x2 −49y2
(4x +7y)(4x −7y)
(4x +7y)(4x −7y)
d) 64x2 −225y2
(8x +15y)(8x −15y)
(8x +15y)(8x −15y)
e) 25x2 −196y12
(5x +14y6)(5x −14y6)
(5x +14y6)(5x −14y6)
f) 16x2 −49y4
(4x +7y2)(4x −7y2)
(4x +7y2)(4x −7y2)
g) 36x12 −169y2
(6x6 +13y)(6x6 −13y)
(6x6 +13y)(6x6 −13y)
h) 49x2 −121y2
(7x +11y)(7x −11y)
(7x +11y)(7x −11y)
i) 16x2 −121y12
(4x +11y6)(4x −11y6)
(4x +11y6)(4x −11y6)
j) 4x2 −81y2
(2x +9y)(2x −9y)
(2x +9y)(2x −9y)