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What is the sum of all real numbers x that are not in the domain of the function
f(x) = 1/(x^2 - 7) + 1/(x^4 - 8) + 1/(x^5 - 9)?

 Nov 15, 2021
 #1
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any 'x' that causes a denominator to be = 0 is not in the domain

 

Solve the following    x^2 -7 = 0

                                 x^4 -8 = 0

                                 x^5 -9 = 0     to find the x's to add together for the answer

 Nov 15, 2021

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