Answer :
The expressions are algebraic expressions, and the sum of the expressions 3/x and 4/x² is [tex]\frac{3x + 4}{x^2}[/tex]
How to determine the sum?
The expression is given as:
[tex]\frac{3}{x} + \frac{4}{x^2}[/tex]
Take the LCM of the expressions
[tex]\frac{3}{x} + \frac{4}{x^2} = \frac{3x + 4}{x^2}[/tex]
The above expression cannot be further simplified
Hence, the sum of the expressions 3/x and 4/x² is [tex]\frac{3x + 4}{x^2}[/tex]
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