Practice
Factor using Difference of Two Squares.a) 49x2 −64y8
(7x +8y4)(7x −8y4)
(7x +8y4)(7x −8y4)
b) 49x2 −36y2
(7x +6y)(7x −6y)
(7x +6y)(7x −6y)
c) 49x2 −25y2
(7x +5y)(7x −5y)
(7x +5y)(7x −5y)
d) 25x12 −144y2
(5x6 +12y)(5x6 −12y)
(5x6 +12y)(5x6 −12y)
e) 4x2 −9y2
(2x +3y)(2x −3y)
(2x +3y)(2x −3y)
f) 16x2 −81y2
(4x +9y)(4x −9y)
(4x +9y)(4x −9y)
g) 49x4 −9y2
(7x2 +3y)(7x2 −3y)
(7x2 +3y)(7x2 −3y)
h) 25x2 −64y2
(5x +8y)(5x −8y)
(5x +8y)(5x −8y)
i) 49x2 −144y8
(7x +12y4)(7x −12y4)
(7x +12y4)(7x −12y4)
j) 64x8 −121y2
(8x4 +11y)(8x4 −11y)
(8x4 +11y)(8x4 −11y)