11-04-2017
Mathematics

contestada

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

Respuesta :

11-04-2017

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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