Practice
Factor using Difference of Two Squares.a) x2 −81
(x +9)(x −9)
(x +9)(x −9)
b) x12 −49
(x6 +7)(x6 −7)
(x6 +7)(x6 −7)
c) x2 −64
(x +8)(x −8)
(x +8)(x −8)
d) x8 −36
(x4 +6)(x4 −6)
(x4 +6)(x4 −6)
e) x8 −36
(x4 +6)(x4 −6)
(x4 +6)(x4 −6)
f) x4 −144
(x2 +12)(x2 −12)
(x2 +12)(x2 −12)
g) x2 −4
(x +2)(x −2)
(x +2)(x −2)
h) x2 −121
(x +11)(x −11)
(x +11)(x −11)
i) x2 −196
(x +14)(x −14)
(x +14)(x −14)
j) x2 −64
(x +8)(x −8)
(x +8)(x −8)