Question

2.x-128=2³.3²

Answer 1

\(2.x-128=2^3.3^2\)

\(2.x-128=8.9=72\)

\(2.x=72+128=200\)

\(x=\frac{200}{2}=100\)

Answer 2

\(2.x-128=2^3.3^2\)

\(2x-128=72\)

             \(2x=72+128\)

             \(2x=200\)

                \(x=200:2\)

                \(x=100\)

Answer 3

Là sao