Practice
Factor using Difference of Two Squares.a) 64x2 −225y2
(8x +15y)(8x −15y)
(8x +15y)(8x −15y)
b) 9x4 −25y2
(3x2 +5y)(3x2 −5y)
(3x2 +5y)(3x2 −5y)
c) 81x8 −49y12
(9x4 +7y6)(9x4 −7y6)
(9x4 +7y6)(9x4 −7y6)
d) 9x2 −100y2
(3x +10y)(3x −10y)
(3x +10y)(3x −10y)
e) 9x2 −64y2
(3x +8y)(3x −8y)
(3x +8y)(3x −8y)
f) 81x2 −169y4
(9x +13y2)(9x −13y2)
(9x +13y2)(9x −13y2)
g) 49x2 −4y4
(7x +2y2)(7x −2y2)
(7x +2y2)(7x −2y2)
h) 81x2 −121y2
(9x +11y)(9x −11y)
(9x +11y)(9x −11y)
i) 64x2 −225y2
(8x +15y)(8x −15y)
(8x +15y)(8x −15y)
j) 25x2 −9y2
(5x +3y)(5x −3y)
(5x +3y)(5x −3y)