6,4•10-2м=6,4•10мм

The equation you provided seems to show a conversion between meters and millimeters. To clarify: 1 meter (m) = 1000 millimeters (mm) So, when you have \(6.4 \times 10^{-2}\) meters, you can convert it to millimeters as follows: \[ 6.4 \times 10^{-2} \text{ m} = 6.4 \times 10^{-2} \times 1000 \text{ mm} \] Now, calculate: \[ 6.4 \times 1000 = 6400 \] Thus, \[ 6.4 \times 10^{-2} \text{ m} = 6400 \text{ mm} \] So the correct expression is: \[ 6.4 \times 10^{-2} \text{ m} = 6.4 \times 10^{3} \text{ mm} \] It looks like your original expression has a small misunderstanding in the exponent. The correct conversion of \(6.4 \times 10^{-2}\) m gives \(6.4 \times 10^{3}\) mm.