How do you work this out?

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24-11-2014
Mathematics

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How do you work this out?

Sagot :

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Konrad509idn Konrad509idn · Answer 1 · 2014-11-24T15:49:51-05:00

Konrad509idn Konrad509idn

24-11-2014

[tex](14x^2-9)+(11x+6)=\\ 14x^2+11x-3 [/tex]

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Uziidn Uziidn · Answer 2 · 2014-11-24T15:55:30-05:00

The answer is H because you cannot add together something that is x^{2}, but you can add together -9 and 6 which would make the equation 14x^{2} + 11x - 3. The 11x has + because it is not stated whether it is positive or negative when added.
The student who picked g is wrong because you cannot add together the two x's with coefficients because one has an exponent and the other does not.

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