Translated version
Sum of cubes
The formula $ a^3+b^3=(a+b)(a^2-ab+b^2) $. Note that there is no $ 2ab $ in the second parenthesis.
Original version
Kubų suma
Formulė $ a^3+b^3=(a+b)(a^2-ab+b^2) $. Pastebėkite, kad antrajame skliauste nėra $ 2ab $.
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