Question

Combine any like terms in the expression. If there are no like terms, rewrite the expression.
7w3+8t2u2–2t2u2–4t2u2

Answer 1

8t2u2, 2t2u2, and 4t2u2 are like terms, so we subtract them, and we are left with 0, so the answer is what remains; 7w3.
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