Factorise: 101^3-99^3
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1030301-970299=60002
BrainlyHulk:
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101=100+1, 99=100-1
(100+1)^3=100^3 + 1^3 + 3×100×1(100+1)
(100-1)^3=100^3 - 1^3 - 3×100×1(100-1)
Using identities,
(a+b)^3 nd (a-b)^3
Solve n get the answer
(100+1)^3=100^3 + 1^3 + 3×100×1(100+1)
(100-1)^3=100^3 - 1^3 - 3×100×1(100-1)
Using identities,
(a+b)^3 nd (a-b)^3
Solve n get the answer
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