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calculati prin metoda cea maI RATIONALA
a.18*17+12*17
c.129*24+76*129
b.19*36-58*72
d.73*58-58*72


Răspuns :

a)17x(18+12)
b)129x(24+76)=
c)19x36-58x72=
d)58x(73-72)=