y^2+ 10z-10y-yz

(^)2 is y to the power of 2

yes

To simplify the expression y^2 + 10z - 10y - yz, we can combine like terms.

First, let's look at the two terms that have a y variable: y^2 and -10y. To combine them, we add the coefficients (numbers in front of y) and keep the y variable. So, y^2 - 10y becomes y(y - 10).

Now, let's consider the other two terms: 10z and -yz. These terms do not have any common variables, so we cannot combine them further.

Putting it all together, the simplified expression is y(y - 10) + 10z - yz.