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Vă roggggggggggggggggggggg​

Vă Roggggggggggggggggggggg class=

Răspuns :

Răspuns:

Explicație pas cu pas:

V=radical

8-2V15 = (V5-V3)^2

V((V5-V3)^2) = V5-V3

6-2V3+2V3+2V5 = 6+2V5= (V5+1)^2

V(V5+1)^2) = V5+1

8+3V3+2V7-2V3 = 8+2V7 = (V7+1)^2

V(V7+1)^2) = V7+1

a= V5+1 + V7+1 = 2+V5+V7