Practice
Factor using Difference of Two Squares.a) 9x8 −49
(3x4 +7)(3x4 −7)
(3x4 +7)(3x4 −7)
b) 36x2 −49
(6x +7)(6x −7)
(6x +7)(6x −7)
c) 25x4 −121
(5x2 +11)(5x2 −11)
(5x2 +11)(5x2 −11)
d) 16x2 −121
(4x +11)(4x −11)
(4x +11)(4x −11)
e) 16x2 −25
(4x +5)(4x −5)
(4x +5)(4x −5)
f) 64x2 −81
(8x +9)(8x −9)
(8x +9)(8x −9)
g) 64x8 −81
(8x4 +9)(8x4 −9)
(8x4 +9)(8x4 −9)
h) 49x2 −4
(7x +2)(7x −2)
(7x +2)(7x −2)
i) 49x8 −121
(7x4 +11)(7x4 −11)
(7x4 +11)(7x4 −11)
j) 25x8 −196
(5x4 +14)(5x4 −14)
(5x4 +14)(5x4 −14)