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Salut, am nevoie rapid pana la ora 8 dimineata de exercitiul 38. Multumesc anticipat

Salut Am Nevoie Rapid Pana La Ora 8 Dimineata De Exercitiul 38 Multumesc Anticipat class=

Răspuns :

x²+2x+1+9x²-6x+1=x²-6x+9+9x² +24x +16
2x+2=9+24x+16
2x+2=24x+25
-23=22x
x=-23/22∈R


(X+1)²+(3x-1)²=(x-3)²+(3x+4)²
X²+2x+1+9x²-6x+1=x²-6x+9+9x²+24x+16
10x²-4x+2=10x²+18x+25
10x²-10x²-4x-18x=25-2
-22x=23
X=-23/22