Practice
Factor using Difference of Two Squares.a) 81x2 −25y2
(9x +5y)(9x −5y)
(9x +5y)(9x −5y)
b) 16x2 −25y2
(4x +5y)(4x −5y)
(4x +5y)(4x −5y)
c) 81x2 −121y2
(9x +11y)(9x −11y)
(9x +11y)(9x −11y)
d) 9x2 −64y8
(3x +8y4)(3x −8y4)
(3x +8y4)(3x −8y4)
e) 36x2 −121y2
(6x +11y)(6x −11y)
(6x +11y)(6x −11y)
f) 49x2 −100y2
(7x +10y)(7x −10y)
(7x +10y)(7x −10y)
g) 64x4 −9y2
(8x2 +3y)(8x2 −3y)
(8x2 +3y)(8x2 −3y)
h) 81x2 −196y12
(9x +14y6)(9x −14y6)
(9x +14y6)(9x −14y6)
i) 64x2 −169y2
(8x +13y)(8x −13y)
(8x +13y)(8x −13y)
j) 81x2 −16y2
(9x +4y)(9x −4y)
(9x +4y)(9x −4y)