Practice
Factor using Difference of Two Squares.a) 81x8 −196y2
(9x4 +14y)(9x4 −14y)
(9x4 +14y)(9x4 −14y)
b) 16x8 −81y2
(4x4 +9y)(4x4 −9y)
(4x4 +9y)(4x4 −9y)
c) 9x8 −196y2
(3x4 +14y)(3x4 −14y)
(3x4 +14y)(3x4 −14y)
d) 9x8 −4y2
(3x4 +2y)(3x4 −2y)
(3x4 +2y)(3x4 −2y)
e) 16x4 −25y8
(4x2 +5y4)(4x2 −5y4)
(4x2 +5y4)(4x2 −5y4)
f) 36x2 −169y2
(6x +13y)(6x −13y)
(6x +13y)(6x −13y)
g) 4x2 −9y12
(2x +3y6)(2x −3y6)
(2x +3y6)(2x −3y6)
h) 64x4 −9y4
(8x2 +3y2)(8x2 −3y2)
(8x2 +3y2)(8x2 −3y2)
i) 64x2 −9y8
(8x +3y4)(8x −3y4)
(8x +3y4)(8x −3y4)
j) 16x8 −49y2
(4x4 +7y)(4x4 −7y)
(4x4 +7y)(4x4 −7y)