What is $\frac{20 x^{5}}{4 x^{4}}$ $(20x^5)/(4x^4)$ ?

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What is $\frac{20 x^{5}}{4 x^{4}}$ $(20x^5)/(4x^4)$ ?

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Answer 1 · 2016-02-04T02:54:36

We can treat the numbers and the pronumerals separately, so $\frac{20}{4} = 5$ $20/4 = 5$ and $\frac{x^{5}}{x^{4}} = x$ $x^5/x^4 = x$ . Our answer is just $5 x$ $5x$ .

Explanation:

Not a lot of further explanation needed, but we can divide out the numbers - $20$ $20$ divided by $4$ $4$ - to give $5$ $5$ . Then we can divide out the powers of $x$ $x$ separately - $x^{5}$ $x^5$ divided by $x^{4}$ $x^4$ . When we divide we subtract indices, so $5 - 4 = 1$ $5-4=1$ , and the answer is $x^{1}$ $x^1$ , or just $x$ $x$ .

Putting those together, we get $5 x$ $5x$ as our overall answer.

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What is $\frac{20 x^{5}}{4 x^{4}}$ $(20x^5)/(4x^4)$ ?

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