Question

(-2) . 7 .(-3) . (-6) =
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3 4 14​

Answer 1

Resposta:

\mathrm{Aplicar\:a\:regra}\:-\left(-a\right)=a

=-\frac{2}{3}\cdot \frac{7}{4}\cdot \:3\cdot \frac{6}{14}

\mathrm{Multiplicar\:frações}:\quad \:a\cdot \frac{b}{c}\cdot \frac{d}{e}=\frac{a\:\cdot \:b\:\cdot \:d}{c\:\cdot \:e}

=-\frac{2\cdot \:7\cdot \:6\cdot \:3}{3\cdot \:4\cdot \:14}

\mathrm{Eliminar\:o\:fator\:comum:}\:3

=-\frac{2\cdot \:7\cdot \:6}{4\cdot \:14}

\mathrm{Multiplicar\:os\:números:}\:2\cdot \:7\cdot \:6=84

=-\frac{84}{4\cdot \:14}

\mathrm{Multiplicar\:os\:números:}\:4\cdot \:14=56

=-\frac{84}{56}

\mathrm{Eliminar\:o\:fator\:comum:}\:28

=-\frac{3}{2}