Question

Folosind factorul comun, calculati:
a) 25-37+63-25
b) 45*32-32*1045
c) 57^2-56*57
d) 77^2-78*77
e) 99^2-98*99-98
f) 89^3-88*89^2-89*90​

Answer 1

Răspuns:

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