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x²−16

x²−16=(x+4)(x-4)

49x²−64

49x²−64=(7x+8)(7x-8)

1024−729y²

1024−729y²=(32+27y)(32-27y)

100−169b²

100−169b²=(10+13b)(10-13b)

144−121m²

144-121m²=(12+11m)(12-11m)

64𝑡²−1

64t²−1=(8t+1)(8t-1)

16z²−36

16z²−36=(4z+6)(4z-6)

36c²−16d²

36c²−16d² =(6c+4d)(6c-4d)

81−25y²

81−25y²=(9+5y)(9-5y)

256a²−625

256a²−625==(16a+25)(16a-25)