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ecuatia x²-5x+6=0 are solutiile reale X1si X2. Calculati 1 supraX1+1supraX2.

Răspuns :

Δ=25-24=1
x1=(5+1)/2=3
x2=(5-1)/2=2
1/3 + 1/2= 0,8(3)
Δ=(-5)² -4*1*6=1
√Δ=1
x1=(5+√Δ):2*1=3
x2=(5-√Δ):2*1=2
1/2+1/3=(3+2):6=5/6