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rezolvati ecuatia exponentiala

x+1/x+3=2x+1


Răspuns :

(x+3)(2x-1)=x+1
2x²-x+6x-3=x+1
2x²+5x-x-3-1=0
2x²+4x-4=0
a=2,b=4,c=-4
Δ=b²-4ac
Δ=4²-4*2*(-4)=16+32=48
x1=(-b-√Δ)/2a
x1=-4-√48/4
x2=(-b+√Δ)/2a
x2=-4+√48/4