Practice
Factor using Difference of Two Squares.a) 64x2 −49y2
(8x +7y)(8x −7y)
(8x +7y)(8x −7y)
b) 49x2 −225y4
(7x +15y2)(7x −15y2)
(7x +15y2)(7x −15y2)
c) 49x4 −225y2
(7x2 +15y)(7x2 −15y)
(7x2 +15y)(7x2 −15y)
d) 64x2 −49y12
(8x +7y6)(8x −7y6)
(8x +7y6)(8x −7y6)
e) 25x2 −144y2
(5x +12y)(5x −12y)
(5x +12y)(5x −12y)
f) 9x2 −25y2
(3x +5y)(3x −5y)
(3x +5y)(3x −5y)
g) 49x2 −121y4
(7x +11y2)(7x −11y2)
(7x +11y2)(7x −11y2)
h) 81x2 −121y2
(9x +11y)(9x −11y)
(9x +11y)(9x −11y)
i) 49x2 −144y2
(7x +12y)(7x −12y)
(7x +12y)(7x −12y)
j) 64x4 −25y12
(8x2 +5y6)(8x2 −5y6)
(8x2 +5y6)(8x2 −5y6)