Practice
Factor using Difference of Two Squares.a) 64x2 −225y2
(8x +15y)(8x −15y)
(8x +15y)(8x −15y)
b) 16x2 −169y2
(4x +13y)(4x −13y)
(4x +13y)(4x −13y)
c) 4x2 −25y2
(2x +5y)(2x −5y)
(2x +5y)(2x −5y)
d) 25x2 −81y4
(5x +9y2)(5x −9y2)
(5x +9y2)(5x −9y2)
e) 81x2 −64y2
(9x +8y)(9x −8y)
(9x +8y)(9x −8y)
f) 49x2 −144y2
(7x +12y)(7x −12y)
(7x +12y)(7x −12y)
g) 4x2 −25y2
(2x +5y)(2x −5y)
(2x +5y)(2x −5y)
h) 49x2 −169y8
(7x +13y4)(7x −13y4)
(7x +13y4)(7x −13y4)
i) 49x8 −121y12
(7x4 +11y6)(7x4 −11y6)
(7x4 +11y6)(7x4 −11y6)
j) 25x2 −36y4
(5x +6y2)(5x −6y2)
(5x +6y2)(5x −6y2)