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21-05-2020
Mathematics

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Simplify the expression by combining like terms. Write the terms from the highest to the lowest power of the variable. 3x ^ 2 + 16x ^ 2 + x + 7 * 10x ^ 2 + 22 + 15x - 6x

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annaboglino annaboglino

21-05-2020

Answer:

89x² + 31x + 22

Step-by-step explanation:

3x² + 16x² + x + 7(10x²) + 22 + 15x - 6x

First we can distribute the 7 to the 10x² and now we have:

3x² + 16x² + x + 70x² + 22 + 15x - 6x

We have three x² terms so we can combine those:

89x² + x + 22 + 15x - 6x

We have three x terms and we can combine those:

89x² + 31x + 22

Nothing else can be done here and all of the terms are in descending order of powers

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