-6,2*a*5=

To simplify the expression \(-6,2*a*5\):

First, note that the comma in \(-6,2\) is likely a typo or a representation of a decimal. If we consider it as \(-6.2\), then we can rewrite the expression as:

\(-6.2 * a * 5\)

Now, multiplying the constants:

\(-6.2 * 5 = -31\)

Thus, the expression simplifies to:

\(-31 * a\)

So, the final result is:

\(-31a\)