KKAbelFL1YH2A KKAbelFL1YH2A

24-05-2016
Mathematics

contestada

What is the sum? 3 over x + 4 over x^2
a) 3x+4 over x^3
b) 7 over x
c) 3x+4 over x^2
d) 7 over x+x^2

Respuesta :

geerky42 geerky42

29-05-2016

We want denominator to be common, so GCD is x².

3 / x + 4 / x² = 3x / x² + 4 / x²

Now we got common denominator. so we can combine them.

3x / x² + 4 / x² = (3x + 4) / x²

So the answer is C, (3x + 4) / x²

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