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lord [1]
3 years ago
5

What is the sum? 3/x+4/(x)2

Mathematics
2 answers:
gavmur [86]3 years ago
6 0
(3/x)+(4/(x^2))

give common denominator:
(3x/(x^2))+(4/(x^2)) = (3x+4)/(x^2)
steposvetlana [31]3 years ago
5 0
ANSWER

\frac{3}{x} + \frac{4}{ {x}^{2} } = \frac{3x + 4}{ {x}^{2} }

EXPLANATION

We want to add the algebraic fractions,

\frac{3}{x} + \frac{4}{ {x}^{2} }

To solve this we need to collect LCM.

The LCM of

x \: and \: {x}^{2} = {x}^{2}

We can now rewrite the expression as a sum of two equivalent algebraic fractions with the least common multiple as the denominator.

Thus,

\frac{3}{x} + \frac{4}{ {x}^{2} } = \frac{3x}{ {x}^{2} } + \frac{4}{ {x}^{2} }


Since the denominators are the same, we write one of them and add the numerators.

This means that,

\frac{3}{x} + \frac{4}{ {x}^{2} } = \frac{3x + 4}{ {x}^{2} }
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