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Calculaţi: a)(x+1)la puterea a 2;
b)(1+x)la puterea a 2;
c)(-x-1)la puterea a 2;
d)(x-1)la puterea a 2;
e)(1-x)la puterea a 2;
f)(3-x)la puterea a 2.
g)(x-3)la puterea a 2
VA ROG!!!!!!!!!!!!!!!