Question

(14x2 + 7x) + 9x2 =

Answer 1

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Remember that you can only add terms together if they are like terms (i.e x^2 needs to go with x^2 only, you can't add it up with x^6 or x^-1 or anything like that).

To add them together, simply add the coefficients (the number next to the variable) together. If I have \(15x^2 + 3x^2\), their sum would be \(18x^2\).