15а 8м2=

To solve \(15a \times 8m^2\), simply multiply the coefficients (15 and 8) and then combine the variable parts.

\[ 15 \times 8 = 120 \]

Since "a" and "m" are different variables, you can write the result as:

\[ 120am^2 \]

So, \(15a \times 8m^2 = 120am^2\).