Practice
Factor using Difference of Two Squares.a) 4x2 −9y8
(2x +3y4)(2x −3y4)
(2x +3y4)(2x −3y4)
b) 25x4 −169y2
(5x2 +13y)(5x2 −13y)
(5x2 +13y)(5x2 −13y)
c) 4x2 −81y2
(2x +9y)(2x −9y)
(2x +9y)(2x −9y)
d) 64x2 −9y2
(8x +3y)(8x −3y)
(8x +3y)(8x −3y)
e) 49x4 −81y2
(7x2 +9y)(7x2 −9y)
(7x2 +9y)(7x2 −9y)
f) 16x2 −81y2
(4x +9y)(4x −9y)
(4x +9y)(4x −9y)
g) 25x4 −36y4
(5x2 +6y2)(5x2 −6y2)
(5x2 +6y2)(5x2 −6y2)
h) 49x8 −64y2
(7x4 +8y)(7x4 −8y)
(7x4 +8y)(7x4 −8y)
i) 9x2 −4y12
(3x +2y6)(3x −2y6)
(3x +2y6)(3x −2y6)
j) 4x2 −25y12
(2x +5y6)(2x −5y6)
(2x +5y6)(2x −5y6)