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Factor and simplify. Express the answer as a fraction without negative exponents.


x(x - 1)^{-(1)/(2)}+2(x - 1)^{(1)/(2) }


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1 Answer

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Explanation:

We have to simplify:


x(x - 1)^{-(1)/(2)}+2(x - 1)^{(1)/(2) }


= \large{(x)/( √(x - 1) ) + 2 √(x - 1)}

Taking a common denominator,


=\large{(x + 2 √(x - 1) * √(x - 1) )/( √(x - 1) )}


=\large{(x + 2(x - 1))/( √(x - 1) )}

Opening the parentheses in numerator,


=\large{ (x + 2x - 2)/( √(x - 1)) }


=\large{(3x - 2)/( √(x - 1) )}

Now multiplying
√(x - 1) in both numerator and denominator,


=\large{(3x - 2 * √(x - 1) )/( √(x - 1) * √(x - 1) )}


=\large{(3x - 2 * √(x - 1) )/(x - 1) }


= \boxed{\frac{3x - 2(x - 1) {}^{ (1)/(2) } }{x - 1} }

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