Practice
Factor using Difference of Two Squares.a) 9x2 −169y2
(3x +13y)(3x −13y)
(3x +13y)(3x −13y)
b) 49x2 −64y2
(7x +8y)(7x −8y)
(7x +8y)(7x −8y)
c) 9x2 −196y2
(3x +14y)(3x −14y)
(3x +14y)(3x −14y)
d) 81x2 −196y4
(9x +14y2)(9x −14y2)
(9x +14y2)(9x −14y2)
e) 16x4 −25y8
(4x2 +5y4)(4x2 −5y4)
(4x2 +5y4)(4x2 −5y4)
f) 81x4 −16y8
(9x2 +4y4)(9x2 −4y4)
(9x2 +4y4)(9x2 −4y4)
g) 36x12 −121y2
(6x6 +11y)(6x6 −11y)
(6x6 +11y)(6x6 −11y)
h) 16x8 −81y2
(4x4 +9y)(4x4 −9y)
(4x4 +9y)(4x4 −9y)
i) 16x2 −49y2
(4x +7y)(4x −7y)
(4x +7y)(4x −7y)
j) 25x2 −16y2
(5x +4y)(5x −4y)
(5x +4y)(5x −4y)