Practice
Factor using Difference of Two Squares.a) 25x2 −121y12
(5x +11y6)(5x −11y6)
(5x +11y6)(5x −11y6)
b) 4x4 −9y2
(2x2 +3y)(2x2 −3y)
(2x2 +3y)(2x2 −3y)
c) 25x2 −144y2
(5x +12y)(5x −12y)
(5x +12y)(5x −12y)
d) 81x2 −121y2
(9x +11y)(9x −11y)
(9x +11y)(9x −11y)
e) 49x2 −81y2
(7x +9y)(7x −9y)
(7x +9y)(7x −9y)
f) 9x2 −25y2
(3x +5y)(3x −5y)
(3x +5y)(3x −5y)
g) 64x2 −25y2
(8x +5y)(8x −5y)
(8x +5y)(8x −5y)
h) 25x2 −81y2
(5x +9y)(5x −9y)
(5x +9y)(5x −9y)
i) 9x2 −49y2
(3x +7y)(3x −7y)
(3x +7y)(3x −7y)
j) 81x12 −196y2
(9x6 +14y)(9x6 −14y)
(9x6 +14y)(9x6 −14y)