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x"+2x+5
x"+2x+6
"=la puterea a 2 a


Răspuns :

x²+2x+1+4=(x+1)²+4
la fel si cealalta
x²+2x+1+4=(x+1)²+4
[tex] x^{2} [/tex]+2x+1+5=[tex] (x+1)^{2} [/tex]+5