Practice
Factor using Difference of Two Squares.a) 64x2 −81y2
(8x +9y)(8x −9y)
(8x +9y)(8x −9y)
b) 64x2 −81y2
(8x +9y)(8x −9y)
(8x +9y)(8x −9y)
c) 49x4 −25y2
(7x2 +5y)(7x2 −5y)
(7x2 +5y)(7x2 −5y)
d) 64x2 −121y12
(8x +11y6)(8x −11y6)
(8x +11y6)(8x −11y6)
e) 25x2 −9y2
(5x +3y)(5x −3y)
(5x +3y)(5x −3y)
f) 81x12 −64y8
(9x6 +8y4)(9x6 −8y4)
(9x6 +8y4)(9x6 −8y4)
g) 81x2 −49y2
(9x +7y)(9x −7y)
(9x +7y)(9x −7y)
h) 25x2 −16y2
(5x +4y)(5x −4y)
(5x +4y)(5x −4y)
i) 64x8 −81y12
(8x4 +9y6)(8x4 −9y6)
(8x4 +9y6)(8x4 −9y6)
j) 49x4 −9y2
(7x2 +3y)(7x2 −3y)
(7x2 +3y)(7x2 −3y)