Practice
Factor using Difference of Two Squares.a) x2 −121
(x +11)(x −11)
(x +11)(x −11)
b) x2 −169
(x +13)(x −13)
(x +13)(x −13)
c) x4 −36
(x2 +6)(x2 −6)
(x2 +6)(x2 −6)
d) x2 −144
(x +12)(x −12)
(x +12)(x −12)
e) x2 −36
(x +6)(x −6)
(x +6)(x −6)
f) x2 −9
(x +3)(x −3)
(x +3)(x −3)
g) x2 −225
(x +15)(x −15)
(x +15)(x −15)
h) x8 −81
(x4 +9)(x4 −9)
(x4 +9)(x4 −9)
i) x2 −81
(x +9)(x −9)
(x +9)(x −9)
j) x2 −81
(x +9)(x −9)
(x +9)(x −9)