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24 June, 01:08

The sum of (2a + ab + 2b) + (4a2 - 3ab + 9)

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  1. 24 June, 01:36
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    You can only add/subtract like terms so:

    2a+ab+2b+4a^2-3ab+9

    2a-2ab+2b+4a^2+9 (the only like terms were ab and - 3ab)
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