Question

3.{43-[5.60+7.(92-80)]}-1
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{4.[800-(32.2+10).2]}-421

Answer 1

Resposta:

$\frac{3\cdot \:43-\left(5\cdot \:60+7\left(92-80\right)\right)-1}{4\left(800-\left(32.2+10\right)\cdot \:2\right)-421}=-0.10485\dots$

Explicação passo a passo:

$\frac{3\cdot \:43-\left(5\cdot \:60+7\left(92-80\right)\right)-1}{4\left(800-\left(32.2+10\right)\cdot \:2\right)-421}\\\\\frac{-256}{4\left(-2\left(10+32.2\right)+800\right)-421}\\\\\frac{-256}{2441.4}\\\\-\frac{256}{2441.4}=-0.10485\dots$