Practice
Factor using Difference of Two Squares.a) 49x2 −121y4
(7x +11y2)(7x −11y2)
(7x +11y2)(7x −11y2)
b) 25x2 −144y4
(5x +12y2)(5x −12y2)
(5x +12y2)(5x −12y2)
c) 25x2 −144y2
(5x +12y)(5x −12y)
(5x +12y)(5x −12y)
d) 25x2 −4y2
(5x +2y)(5x −2y)
(5x +2y)(5x −2y)
e) 49x8 −9y2
(7x4 +3y)(7x4 −3y)
(7x4 +3y)(7x4 −3y)
f) 81x2 −16y2
(9x +4y)(9x −4y)
(9x +4y)(9x −4y)
g) 64x2 −81y8
(8x +9y4)(8x −9y4)
(8x +9y4)(8x −9y4)
h) 64x2 −169y2
(8x +13y)(8x −13y)
(8x +13y)(8x −13y)
i) 81x2 −100y2
(9x +10y)(9x −10y)
(9x +10y)(9x −10y)
j) 25x2 −9y2
(5x +3y)(5x −3y)
(5x +3y)(5x −3y)