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Calculeaza, folosind formula (a+b)²=a²+2ab+b²:
a)(x+1)²
b)(x+2)²
c)(x+3)²
d)(x+5)²
Multumesc!


Răspuns :

Răspuns:

a) x²+2x+1

b) x²+4x+4

c) x²+6x+9

d) x²+10x+25