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stiind ca axb=8 si axc=16,calculeaza 10xax(b+c)

Răspuns :

10xax(b+c)=
10×a×b + 10×a×c=
10×8 + 10×16=
80 + 160 =
240
axb=8 si axc=16
10xax(b+c)=10xaxb+10xaxc=10x8+10x16=80+160=240