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Addition and Subtraction of Algebraic Expressions

vi Add: 5m - ...

Question

Question 2 (vi)

Add:

5m - 7n, 3n - 4m + 2, 2m - 3mn - 5

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Solution

5m - 7n, 3n - 4m + 2, 2m - 3mn - 5 = 5m - 7n + 3n - 4m + 2 + 2m - 3mn - 5
= 5m - 4m + 2m - 7n + 3n - 3mn + 2 - 5
= (5 - 4 + 2)m + (-7 + 3)n - 3mn - 3
= 3m - 4n - 3mn - 3

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Add:

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Question 2 (i)

Add:

3mn, -5mn, 8mn, -4mn

4 m^{3} n^{2}

4 m^{2} n^{2}

- 6 m^{3} n^{2}

6 p m^{3} n^{2}

4 m^{3} n^{2}

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