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Toate formulele de calcul prescurtat de la expresii.



Răspuns :

(a+b)²=a²+2*a*b+b²
(a-b)²=a²-2*a*b+b²
(a+b+c)²=a²+b²+c²+2*a*b+2*a*c+2*b*c
(a+b)*(a-b)=a²-b²
a³-b³=(a-b)*(a²+a*b+b²)
a³+b³=(a-b)*(a²-a*b+b²)
(a+b)³=a³+3*a²*b+3*a*b²+b³
(a-b)³=a³-3*a²*b+3*a*b²-b³