Practice
Factor using Difference of Two Squares.a) 49x4 −64y4
(7x2 +8y2)(7x2 −8y2)
(7x2 +8y2)(7x2 −8y2)
b) 49x2 −4y12
(7x +2y6)(7x −2y6)
(7x +2y6)(7x −2y6)
c) 25x2 −16y4
(5x +4y2)(5x −4y2)
(5x +4y2)(5x −4y2)
d) 49x2 −100y2
(7x +10y)(7x −10y)
(7x +10y)(7x −10y)
e) 49x12 −121y2
(7x6 +11y)(7x6 −11y)
(7x6 +11y)(7x6 −11y)
f) 49x2 −100y2
(7x +10y)(7x −10y)
(7x +10y)(7x −10y)
g) 25x12 −169y8
(5x6 +13y4)(5x6 −13y4)
(5x6 +13y4)(5x6 −13y4)
h) 16x2 −81y4
(4x +9y2)(4x −9y2)
(4x +9y2)(4x −9y2)
i) 25x12 −121y12
(5x6 +11y6)(5x6 −11y6)
(5x6 +11y6)(5x6 −11y6)
j) 81x2 −196y2
(9x +14y)(9x −14y)
(9x +14y)(9x −14y)