Practice
Factor using Difference of Two Squares.a) 25x2 −9y2
(5x +3y)(5x −3y)
(5x +3y)(5x −3y)
b) 81x4 −100y2
(9x2 +10y)(9x2 −10y)
(9x2 +10y)(9x2 −10y)
c) 36x4 −169y4
(6x2 +13y2)(6x2 −13y2)
(6x2 +13y2)(6x2 −13y2)
d) 81x2 −169y2
(9x +13y)(9x −13y)
(9x +13y)(9x −13y)
e) 36x2 −121y2
(6x +11y)(6x −11y)
(6x +11y)(6x −11y)
f) 81x2 −49y2
(9x +7y)(9x −7y)
(9x +7y)(9x −7y)
g) 64x2 −9y2
(8x +3y)(8x −3y)
(8x +3y)(8x −3y)
h) 49x2 −144y2
(7x +12y)(7x −12y)
(7x +12y)(7x −12y)
i) 25x2 −144y4
(5x +12y2)(5x −12y2)
(5x +12y2)(5x −12y2)
j) 9x2 −100y2
(3x +10y)(3x −10y)
(3x +10y)(3x −10y)