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folosind factorul comun rezolvati exercitiul

200x9+5x700-100=

Răspuns :

HawkEyed

200x9+5x700-100= 
2x100x9 + 5x100x7 - 100 = 
100 x ( 2x9 + 5x7 - 1) =
100 x ( 18 + 35 - 1) = 
100 x 52 = 
5200 
CarMina03
200x9+5x700-100=
2x100x9+5x7x100-100x1=
100x(2x9+5x7-1)=
100x(18+35-1)=
100x(53-1)=
100x52=
5200