Question

Me ajudam a fazer esse exercício pf

Answer 1

C)[ 50 - (20:2)X 3] + [15:5 X( 1 + 3²)]
[ 50 - 10 X 3 ] + [ 3  X ( 1 +  9]
[ 50 - 30 ] + [ 3 X 10]
      20     +       30    =   50

Answer 2

$[50-(\frac{20}{2}).3]+[ \frac{15}{5}.(1+3^{2})]$

$[50-10.3]+[3.(1+9)]$

$[50-30]+[3.10]$

$20+30=50$