Solve the problem what is (4r3 + 3r4) - (r4 + 5r3)

First you can also remove parenthesis first.

And it gave us ⇒ , ,, , and .

Finally, you add similar elements.

And it gave us ⇒ .

Final answer is ⇒

Hope this helps!

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-Charlie

it would open into a square depending on the type of envelope i’m not sure about the second part