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Why is the answer correct?


Why is the answer correct? ​-example-1
User Tys
by
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2 Answers

2 votes


\bf x(2x+4x^2-5-3x)\implies x(\stackrel{\textit{like-terms}}{2x-3x}+4x^2-5)\implies x(-x+4x^2-5) \\\\\\ -x^2+4x^3-5x\implies \stackrel{\textit{general form}}{4x^3-x^2-5x}

User Boblemar
by
7.9k points
5 votes

Answer:

Here's what I get.

Explanation:

x(2x + 4x² - 5 – 3x)

1. Distribute the x

2x² + 4x³ - 5x - 3x²

2. Combine like terms

4x³ - 5x – x²

3. Write the expression in order of descending powers of x


\boxed{\mathbf{4x^(3) - x^(2) - 5x}}

User Eric Liu
by
8.3k points

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