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Ответ

Ответ дан
thegamerlol

Пошаговое объяснение:

1)128*7=(20+8)*7=20*7+8*7=140+56=196.

2)8(3х+5у)=8*3х+8*5у=24х+40у.

3)10*(7а-5b)=10*7a-10*5b=70a-50b.

4)25*15*4=(25*4)×15=100*15=1500.

5)(68+a)*2=68*2+2*a=136+2a.

Ответ

Ответ дан
hramovacaterina2016

Ответ:

128*7=(20+8)*7=20*7+8*7=140+56=196.


2)8(3х+5у)=8*3х+8*5у=24х+40у.


3)10*(7а-5b)=10*7a-10*5b=70a-50b.


4)25*15*4=(25*4)×15=100*15=1500.


5)(68+a)*2=68*2+2*a=136+2a.

Пошаговое объяснение:

н

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