Practice
Factor using Difference of Two Squares.a) 25x2 −4y2
(5x +2y)(5x −2y)
(5x +2y)(5x −2y)
b) 9x2 −49y2
(3x +7y)(3x −7y)
(3x +7y)(3x −7y)
c) 9x2 −64y2
(3x +8y)(3x −8y)
(3x +8y)(3x −8y)
d) 9x2 −64y2
(3x +8y)(3x −8y)
(3x +8y)(3x −8y)
e) 81x2 −100y2
(9x +10y)(9x −10y)
(9x +10y)(9x −10y)
f) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
g) 25x2 −196y2
(5x +14y)(5x −14y)
(5x +14y)(5x −14y)
h) 81x12 −49y2
(9x6 +7y)(9x6 −7y)
(9x6 +7y)(9x6 −7y)
i) 64x2 −121y2
(8x +11y)(8x −11y)
(8x +11y)(8x −11y)
j) 81x2 −25y2
(9x +5y)(9x −5y)
(9x +5y)(9x −5y)