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Calculează :
[tex](x {}^{2} + x - x - 2 - 2) {}^{3} [/tex]

Răspuns :

SignOfTheTimes
(x²+x-x-2-2)³ = (x²-4)³ = (x²)³-12x⁴+48x-64 = x^6-12x⁴+48x-64.
EagleEyes
[tex](x^2+x-x-2-2)^3=( x^2 - 4 )^3 = x^6 - 12x^4 + 48x^2- 64 Folosesti formula ( a - b )^3 = a^3 - 3a^2b + 3ab^2 - b^3[/tex]