Practice
Factor using Difference of Two Squares.a) 49x2 −225y2
(7x +15y)(7x −15y)
(7x +15y)(7x −15y)
b) 16x8 −121y2
(4x4 +11y)(4x4 −11y)
(4x4 +11y)(4x4 −11y)
c) 81x2 −196y2
(9x +14y)(9x −14y)
(9x +14y)(9x −14y)
d) 9x12 −169y2
(3x6 +13y)(3x6 −13y)
(3x6 +13y)(3x6 −13y)
e) 4x2 −121y2
(2x +11y)(2x −11y)
(2x +11y)(2x −11y)
f) 81x2 −64y2
(9x +8y)(9x −8y)
(9x +8y)(9x −8y)
g) 25x2 −9y12
(5x +3y6)(5x −3y6)
(5x +3y6)(5x −3y6)
h) 49x8 −100y2
(7x4 +10y)(7x4 −10y)
(7x4 +10y)(7x4 −10y)
i) 9x2 −169y2
(3x +13y)(3x −13y)
(3x +13y)(3x −13y)
j) 4x8 −121y2
(2x4 +11y)(2x4 −11y)
(2x4 +11y)(2x4 −11y)