Practice
Factor using Difference of Two Squares.a) 9x2 −100y2
(3x +10y)(3x −10y)
(3x +10y)(3x −10y)
b) 49x8 −64y2
(7x4 +8y)(7x4 −8y)
(7x4 +8y)(7x4 −8y)
c) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
d) 4x2 −225y4
(2x +15y2)(2x −15y2)
(2x +15y2)(2x −15y2)
e) 9x12 −196y2
(3x6 +14y)(3x6 −14y)
(3x6 +14y)(3x6 −14y)
f) 64x12 −49y2
(8x6 +7y)(8x6 −7y)
(8x6 +7y)(8x6 −7y)
g) 49x2 −121y2
(7x +11y)(7x −11y)
(7x +11y)(7x −11y)
h) 49x2 −225y2
(7x +15y)(7x −15y)
(7x +15y)(7x −15y)
i) 9x2 −64y2
(3x +8y)(3x −8y)
(3x +8y)(3x −8y)
j) 64x4 −81y2
(8x2 +9y)(8x2 −9y)
(8x2 +9y)(8x2 −9y)