Răspuns :
a × b = 45 si a × c = 28
a × ( b - c ) = a × b - a × c = 45 - 28 = 17 → valoarea expresiei
a × b = 45 si a × c =
=28
=a × ( b - c ) =
=a × b - a × c =
=45 - 28 =
=17
a × b = 45 si a × c = 28
a × ( b - c ) = a × b - a × c = 45 - 28 = 17 → valoarea expresiei
a × b = 45 si a × c =
=28
=a × ( b - c ) =
=a × b - a × c =
=45 - 28 =
=17