phhhh
phhhh
11-04-2017
Mathematics
contestada
The sum of (2a + ab + 2b) + (4a2 - 3ab + 9)
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irspow
irspow
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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