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27 votes
Please help, algebra 1, i dont know how to begin to solve it :/ thank you thank you.Simplify:

Please help, algebra 1, i dont know how to begin to solve it :/ thank you thank you-example-1
User Gabriel Ferrarini
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1 Answer

15 votes
15 votes

Given the expression:


(x^2-4x^3)+(5x^3+3x^2)

You can simplify it as follows:

1. Distribute the positive sign. Since the sign between the parentheses is positive, it does not change the signs of the second parentheses:


=x^2-4x^3+5x^3+3x^2

2. Add the like terms.

By definition, like terms have the same variables with the same exponent.

In this case, you need to add the terms with exponent 3 and add the terms with exponent 2. Notice that:


\begin{gathered} -4x^3+5x^3=x^3 \\ \\ x^2+3x^2=4x^2 \end{gathered}

Then, you get:


=x^3+4x^2

Hence, the answer is:


=x^3+4x^2

User Jsells
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