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calculati (d^3-8/d^2-4 - 6d/d+2):(1-4/d+2) numarul 1.155

Calculati D38d24 6dd214d2 Numarul 1155 class=

Răspuns :

[(d³-8)/(d²-4)-6d/(d+2)]:[1-4/(d+2)]² =
=[(d³-8)/(d-2)(d+2)-6d/(d+2)]:[(d+2-4)/(d+2)]² =
=(d³-8-6d²+12d)/(d-2)(d+2) : (d-2)²/(d+2)² =
=(d³-8-6d²+12d)/(d-2) × (d+2)/(d-2)² =
=(d-2)³/(d-2) × (d+2)/(d-2)² =
= d+2