Practice
Factor using Difference of Two Squares.a) 64x2 −49y2
(8x +7y)(8x −7y)
(8x +7y)(8x −7y)
b) 81x8 −100y2
(9x4 +10y)(9x4 −10y)
(9x4 +10y)(9x4 −10y)
c) 16x2 −81y2
(4x +9y)(4x −9y)
(4x +9y)(4x −9y)
d) 9x8 −16y2
(3x4 +4y)(3x4 −4y)
(3x4 +4y)(3x4 −4y)
e) 9x2 −121y2
(3x +11y)(3x −11y)
(3x +11y)(3x −11y)
f) 81x2 −4y2
(9x +2y)(9x −2y)
(9x +2y)(9x −2y)
g) 64x2 −225y2
(8x +15y)(8x −15y)
(8x +15y)(8x −15y)
h) 64x2 −225y4
(8x +15y2)(8x −15y2)
(8x +15y2)(8x −15y2)
i) 25x4 −196y2
(5x2 +14y)(5x2 −14y)
(5x2 +14y)(5x2 −14y)
j) 64x2 −81y2
(8x +9y)(8x −9y)
(8x +9y)(8x −9y)