The Brainliest Answer!
In finding the area of a rectangle, we are going to use the formula

So All you need to do was substitution.


As you can notice, this is a difference of two squares. You can simply solve it by squaring the first term (2m) then add a negative sign and then square the last term (5n). You can also use the foil method. Both would do.

The area was: 4m²-25n²

If you have questions, just comment down below. I Hope it helps

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