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Alinasuciu47
a fost răspuns

Calculati folosind factorul comun :
b) 99x101x75+25x9999-999900+1997=
c) 19+81x732+19x366x2-4x25x732=

Răspuns :

La pimul aspunsul este1997     Ia la al doilea - 19
1997-
AbbeyWhing
b) 99x101x75+25x9999-999900+1997=
9999x75+25x9999-999900+1997=
9999x(75+35)-999900+1997=
9999x100-999900+1997=
999900-999900+1997=
0+1997=
=1997


c) 19+81x732+19x366x2-4x25x732=
19+81x732+19x732-100x732=
19+732x(81+19-100)=
19+732x(100-100)=
19+732x0=
19+0=
=19

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