Question

What is the sum? startfraction 2 over x squared endfraction startfraction 4 over x squared endfraction

Answer 1

6/x²

Explanation:

Rational expressions are added the same way numerical fractions are added. Their sum is the quotient of the sum of numerators, and the common denominator.

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fraction sum

The given fractions already have the same denominator, so we simply add their numerators.

`(2)/(x^2)+(4)/(x^2)=(2+4)/(x^2)=\boxed{(6)/(x^2)}`