Addition of monomials and polynomials Arrange if necessary and add the
following
1. 8b + 3b — 5ab
2. -cd + 6cd — 9cd
3. 4m³n² — 3m³n² + m³n² — 6m³n² + 4m³n²
4. 3a + 2b — c + d, 6a — 2b - 3c — 5d, -9c + d — 2b + 7a
5. 2a² — 7ab + 9b², 8b² + 7ab + a², a² + b²
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