Practice
Factor using Difference of Two Squares.a) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
b) 49x12 −4y2
(7x6 +2y)(7x6 −2y)
(7x6 +2y)(7x6 −2y)
c) 49x2 −16y8
(7x +4y4)(7x −4y4)
(7x +4y4)(7x −4y4)
d) 9x8 −49y8
(3x4 +7y4)(3x4 −7y4)
(3x4 +7y4)(3x4 −7y4)
e) 16x12 −121y2
(4x6 +11y)(4x6 −11y)
(4x6 +11y)(4x6 −11y)
f) 49x2 −16y4
(7x +4y2)(7x −4y2)
(7x +4y2)(7x −4y2)
g) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
h) 25x2 −196y8
(5x +14y4)(5x −14y4)
(5x +14y4)(5x −14y4)
i) 49x2 −25y12
(7x +5y6)(7x −5y6)
(7x +5y6)(7x −5y6)
j) 25x2 −16y2
(5x +4y)(5x −4y)
(5x +4y)(5x −4y)