Simpify this expresion 7+5h+2h+7h2–2h2

Step-by-step explanation:

We can simplify this expression by combining like terms.

To combine like terms, we are looking for terms that share the same variable and exponent.

First, we can see that the terms and share the same variable (h) and the same exponent (2).

This simplifies to .

Next, we can see that and share the same variable (h) and the same exponent (1) so we can add these.

This simplifies to .

Lastly, we can see that we just have 7, no more terms with the same variable (none). So this is 7.

Adding up all the terms in standard form (), we get .

Hope this helped!

2nd one in the first row is correct