Practice
Factor using Difference of Two Squares.a) 25x2 −36
(5x +6)(5x −6)
(5x +6)(5x −6)
b) 16x8 −225
(4x4 +15)(4x4 −15)
(4x4 +15)(4x4 −15)
c) 25x2 −16
(5x +4)(5x −4)
(5x +4)(5x −4)
d) 49x2 −225
(7x +15)(7x −15)
(7x +15)(7x −15)
e) 25x2 −81
(5x +9)(5x −9)
(5x +9)(5x −9)
f) 4x2 −81
(2x +9)(2x −9)
(2x +9)(2x −9)
g) 49x2 −16
(7x +4)(7x −4)
(7x +4)(7x −4)
h) 81x2 −16
(9x +4)(9x −4)
(9x +4)(9x −4)
i) 49x2 −4
(7x +2)(7x −2)
(7x +2)(7x −2)
j) 9x2 −4
(3x +2)(3x −2)
(3x +2)(3x −2)