Practice
Factor using Difference of Two Squares.a) 4x4 −9y2
(2x2 +3y)(2x2 −3y)
(2x2 +3y)(2x2 −3y)
b) 49x2 −36y12
(7x +6y6)(7x −6y6)
(7x +6y6)(7x −6y6)
c) 49x2 −121y2
(7x +11y)(7x −11y)
(7x +11y)(7x −11y)
d) 9x12 −49y2
(3x6 +7y)(3x6 −7y)
(3x6 +7y)(3x6 −7y)
e) 25x4 −4y2
(5x2 +2y)(5x2 −2y)
(5x2 +2y)(5x2 −2y)
f) 25x2 −64y12
(5x +8y6)(5x −8y6)
(5x +8y6)(5x −8y6)
g) 36x8 −169y2
(6x4 +13y)(6x4 −13y)
(6x4 +13y)(6x4 −13y)
h) 4x2 −81y2
(2x +9y)(2x −9y)
(2x +9y)(2x −9y)
i) 81x4 −196y12
(9x2 +14y6)(9x2 −14y6)
(9x2 +14y6)(9x2 −14y6)
j) 25x2 −64y8
(5x +8y4)(5x −8y4)
(5x +8y4)(5x −8y4)