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# Why?

If $$a+b=c$$ then ${ a }^{ 3 }+{ b }^{ 3 }\overset { ? }{ = }{ c }^{ 3 }={ \left( a+b \right) }^{ 3 }$

Note by JohnDonnie Celestre
1 year, 3 months ago

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try again what do you ask · 1 year, 3 months ago

I can't understand the last statement starting from "so this problem is equivalent to .. " · 1 year, 3 months ago

I do not understand what you are trying to ask. Staff · 1 year, 3 months ago

I can't understand why is $$a^3 + b^3 = c^3$$ equates to $$(a+b)^3 = c^3$$ if $$a+b=c$$. I really tried hard to understand but I failed. · 1 year, 3 months ago