Practice
Factor using Difference of Two Squares.a) x2 −225
(x +15)(x −15)
(x +15)(x −15)
b) x2 −25
(x +5)(x −5)
(x +5)(x −5)
c) x4 −36
(x2 +6)(x2 −6)
(x2 +6)(x2 −6)
d) x2 −25
(x +5)(x −5)
(x +5)(x −5)
e) x2 −64
(x +8)(x −8)
(x +8)(x −8)
f) x2 −16
(x +4)(x −4)
(x +4)(x −4)
g) x12 −81
(x6 +9)(x6 −9)
(x6 +9)(x6 −9)
h) x2 −81
(x +9)(x −9)
(x +9)(x −9)
i) x4 −49
(x2 +7)(x2 −7)
(x2 +7)(x2 −7)
j) x12 −81
(x6 +9)(x6 −9)
(x6 +9)(x6 −9)