Practice
Factor using Difference of Two Squares.a) 9x2 −16y8
(3x +4y4)(3x −4y4)
(3x +4y4)(3x −4y4)
b) 49x2 −25y2
(7x +5y)(7x −5y)
(7x +5y)(7x −5y)
c) 4x2 −121y2
(2x +11y)(2x −11y)
(2x +11y)(2x −11y)
d) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
e) 81x2 −25y2
(9x +5y)(9x −5y)
(9x +5y)(9x −5y)
f) 4x12 −121y2
(2x6 +11y)(2x6 −11y)
(2x6 +11y)(2x6 −11y)
g) 4x2 −25y4
(2x +5y2)(2x −5y2)
(2x +5y2)(2x −5y2)
h) 49x8 −16y12
(7x4 +4y6)(7x4 −4y6)
(7x4 +4y6)(7x4 −4y6)
i) 49x8 −81y2
(7x4 +9y)(7x4 −9y)
(7x4 +9y)(7x4 −9y)
j) 81x2 −25y2
(9x +5y)(9x −5y)
(9x +5y)(9x −5y)