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LenKa [72]
3 years ago
14

Which statement best reflects the solution(s) of the equation?

Mathematics
1 answer:
Umnica [9.8K]3 years ago
4 0

Answer:

C. There is only one solution: x = 2. The solution x = 1 is an extraneous solution.

Step-by-step explanation:

Given:

The equation is:

\frac{1}{x-1}+\frac{2}{x}=\frac{x}{x-1}\\\frac{x}{x(x-1)}+\frac{2(x-1)}{x(x-1)}=\frac{x}{x-1}\\\frac{x+2x-2}{x(x-1)}=\frac{x}{x-1}\\\frac{3x-2}{x}=x\\ 3x-2=x^2\\x^2-3x+2=0

Now, we solve this quadratic equation by factoring.

x^2-3x+2=0\\(x-2)(x-1)=0\\x=2\textrm{ or }x=1

Now, x=1 is an extraneous solution as at x equal to 1, the equation is undefined.

Therefore, x=2 is the only solution. The solution x=1 is an extraneous solution.

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