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Akimi4 [234]
3 years ago
7

Help!!! What is the difference ? (x - 8)/(3x) - (3x)/(x ^ 2)

Mathematics
2 answers:
xenn [34]3 years ago
6 0

Answer:

The difference of \frac{x-8}{3x}-\frac{3x}{x^2}  is \mathbf{\frac{x-17}{3x}}

Step-by-step explanation:

We need to find the difference: \frac{x-8}{3x}-\frac{3x}{x^2}

Simplifying to find the difference:

\frac{x-8}{3x}-\frac{3x}{x^2}

x is common in both 3x and x^2 so, we can cancel it out and we get:

=\frac{x-8}{3x}-\frac{3x}{x(x)}\\=\frac{x-8}{3x}-\frac{3}{x}

Now, taking LCM of 3x and x we get 3x, We will multiply 3x with both terms and then solve we get:

=\frac{x-8-3(3)}{3x}\\=\frac{x-8-9}{3x}\\=\frac{x-17}{3x}

It cannot be further simplified, so we get \frac{x-17}{3x} as answer.

So, The difference of \frac{x-8}{3x}-\frac{3x}{x^2}  is \mathbf{\frac{x-17}{3x}}

Lady bird [3.3K]3 years ago
4 0

Answer:

Given that you're providing only a single term, asking for a difference doesn't make a lot of sense.  I assume you're asking to have the expression simplified?

If so, then it can be reduced to (x - 17) / 3x

Step-by-step explanation:

You can simplify by multiplying both terms each by a different ratio that equals one, but also gives the terms common denominator.  Multiplying the first one by x²/x² and the second by 3x/3x will do that for you.

After that you can group the terms into one fraction and simplify:

\frac{x - 8}{3x} - \frac{3x}{x^2}  \\\\= \frac{x - 8}{3x}\times\frac{x^2}{x^2} - \frac{3x}{x^2} \times\frac{3x}{3x} \\\\= \frac{x^3 - 8x^2}{3x^3} - \frac{9x^2}{3x^3} \\\\=  \frac{x^3 - 8x^2 - 9x^2}{3x^3} \\\\=  \frac{x - 8 - 9}{3x}\\\\=   \frac{x - 17}{3x}\\

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