Practice
Factor using Difference of Two Squares.a) 64x2 −121y8
(8x +11y4)(8x −11y4)
(8x +11y4)(8x −11y4)
b) 49x8 −9y2
(7x4 +3y)(7x4 −3y)
(7x4 +3y)(7x4 −3y)
c) 64x2 −169y2
(8x +13y)(8x −13y)
(8x +13y)(8x −13y)
d) 81x4 −25y4
(9x2 +5y2)(9x2 −5y2)
(9x2 +5y2)(9x2 −5y2)
e) 49x2 −4y2
(7x +2y)(7x −2y)
(7x +2y)(7x −2y)
f) 81x2 −100y2
(9x +10y)(9x −10y)
(9x +10y)(9x −10y)
g) 64x2 −121y2
(8x +11y)(8x −11y)
(8x +11y)(8x −11y)
h) 16x4 −225y2
(4x2 +15y)(4x2 −15y)
(4x2 +15y)(4x2 −15y)
i) 16x4 −25y2
(4x2 +5y)(4x2 −5y)
(4x2 +5y)(4x2 −5y)
j) 49x4 −64y2
(7x2 +8y)(7x2 −8y)
(7x2 +8y)(7x2 −8y)