Question

5 [(85-35:7) :2 mũ3 + 3 mũ 2 .10] -50

 

Answer 1

\(5\left[\left(85-35:7\right):2^3+3^2.10\right]-50\)

\(=5\left[\left(85-5\right):8+9.10\right]-50\)

\(=5\left[80:8+90\right]-50\)

\(=5\left[10+90\right]-50\)

\(=5.100-50\)

\(=500-50\)

\(=450\)

Answer 2

5.[ (85-35:7):2^3+3^2.10 ] - 50

=5.[(85-5):8+9.10  ]-50

=5.[80:8+9.10]-50

=5.[10+90]-50

=5.100-50

=5.2.50-50

=10.50-50.1

=50.(10-1)

=50.9

=450