Practice
Factor using Difference of Two Squares.a) 49x2 −169
(7x +13)(7x −13)
(7x +13)(7x −13)
b) 9x4 −25
(3x2 +5)(3x2 −5)
(3x2 +5)(3x2 −5)
c) 49x4 −100
(7x2 +10)(7x2 −10)
(7x2 +10)(7x2 −10)
d) 81x8 −4
(9x4 +2)(9x4 −2)
(9x4 +2)(9x4 −2)
e) 25x4 −169
(5x2 +13)(5x2 −13)
(5x2 +13)(5x2 −13)
f) 16x2 −49
(4x +7)(4x −7)
(4x +7)(4x −7)
g) 81x2 −196
(9x +14)(9x −14)
(9x +14)(9x −14)
h) 49x4 −9
(7x2 +3)(7x2 −3)
(7x2 +3)(7x2 −3)
i) 64x2 −169
(8x +13)(8x −13)
(8x +13)(8x −13)
j) 64x2 −49
(8x +7)(8x −7)
(8x +7)(8x −7)