Practice
Factor using Difference of Two Squares.a) 49x2 −100y2
(7x +10y)(7x −10y)
(7x +10y)(7x −10y)
b) 16x2 −49y2
(4x +7y)(4x −7y)
(4x +7y)(4x −7y)
c) 25x2 −36y2
(5x +6y)(5x −6y)
(5x +6y)(5x −6y)
d) 25x2 −9y12
(5x +3y6)(5x −3y6)
(5x +3y6)(5x −3y6)
e) 49x2 −25y2
(7x +5y)(7x −5y)
(7x +5y)(7x −5y)
f) 16x2 −25y4
(4x +5y2)(4x −5y2)
(4x +5y2)(4x −5y2)
g) 49x2 −16y2
(7x +4y)(7x −4y)
(7x +4y)(7x −4y)
h) 4x2 −121y2
(2x +11y)(2x −11y)
(2x +11y)(2x −11y)
i) 81x2 −121y2
(9x +11y)(9x −11y)
(9x +11y)(9x −11y)
j) 4x8 −25y12
(2x4 +5y6)(2x4 −5y6)
(2x4 +5y6)(2x4 −5y6)