Practice
Factor using Difference of Two Squares.a) 25x2 −16y2
(5x +4y)(5x −4y)
(5x +4y)(5x −4y)
b) 49x8 −36y2
(7x4 +6y)(7x4 −6y)
(7x4 +6y)(7x4 −6y)
c) 49x2 −25y2
(7x +5y)(7x −5y)
(7x +5y)(7x −5y)
d) 25x12 −196y2
(5x6 +14y)(5x6 −14y)
(5x6 +14y)(5x6 −14y)
e) 64x2 −169y2
(8x +13y)(8x −13y)
(8x +13y)(8x −13y)
f) 49x2 −169y2
(7x +13y)(7x −13y)
(7x +13y)(7x −13y)
g) 4x2 −169y2
(2x +13y)(2x −13y)
(2x +13y)(2x −13y)
h) 49x2 −121y8
(7x +11y4)(7x −11y4)
(7x +11y4)(7x −11y4)
i) 81x2 −64y2
(9x +8y)(9x −8y)
(9x +8y)(9x −8y)
j) 64x2 −25y2
(8x +5y)(8x −5y)
(8x +5y)(8x −5y)