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Denis26
a fost răspuns

a×b=30sia×c=18,calculatia(b+c)

Răspuns :

Dixie
a*b=30
a*c=18
----------(+)
a*b+a*c=30+18
a(b+c)=48
[tex]a \times b=30 \\ a \times c=18 \\ a(b+c)=a \times b+a \times c=30+18=48 \\ \boxed{a(b+c)=48}[/tex]

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