Practice
Factor using Difference of Two Squares.a) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
b) 4x2 −9y2
(2x +3y)(2x −3y)
(2x +3y)(2x −3y)
c) 4x2 −225y2
(2x +15y)(2x −15y)
(2x +15y)(2x −15y)
d) 4x2 −225y2
(2x +15y)(2x −15y)
(2x +15y)(2x −15y)
e) 81x2 −121y2
(9x +11y)(9x −11y)
(9x +11y)(9x −11y)
f) 49x2 −144y12
(7x +12y6)(7x −12y6)
(7x +12y6)(7x −12y6)
g) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
h) 25x2 −81y8
(5x +9y4)(5x −9y4)
(5x +9y4)(5x −9y4)
i) 64x8 −81y2
(8x4 +9y)(8x4 −9y)
(8x4 +9y)(8x4 −9y)
j) 16x2 −49y8
(4x +7y4)(4x −7y4)
(4x +7y4)(4x −7y4)