Practice
Factor using Difference of Two Squares.a) 49x2 −9y2
(7x +3y)(7x −3y)
(7x +3y)(7x −3y)
b) 49x2 −36y2
(7x +6y)(7x −6y)
(7x +6y)(7x −6y)
c) 4x2 −169y2
(2x +13y)(2x −13y)
(2x +13y)(2x −13y)
d) 9x8 −100y2
(3x4 +10y)(3x4 −10y)
(3x4 +10y)(3x4 −10y)
e) 16x2 −9y2
(4x +3y)(4x −3y)
(4x +3y)(4x −3y)
f) 64x2 −9y12
(8x +3y6)(8x −3y6)
(8x +3y6)(8x −3y6)
g) 9x12 −169y2
(3x6 +13y)(3x6 −13y)
(3x6 +13y)(3x6 −13y)
h) 49x4 −36y2
(7x2 +6y)(7x2 −6y)
(7x2 +6y)(7x2 −6y)
i) 81x2 −49y2
(9x +7y)(9x −7y)
(9x +7y)(9x −7y)
j) 16x2 −169y2
(4x +13y)(4x −13y)
(4x +13y)(4x −13y)