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a fost răspuns

simplificati fractiile:[tex] \frac{2x+6}{5x+10} [/tex] = ?????
[tex] \frac{3x-6}{2x-4} [/tex]=????? [tex] \frac{ x^{2} +2x+1}{ x^{2} -1} [/tex]=?????? [tex] \frac{ x^{2} -4}{ x^{2} -4x+4} [/tex]=?????