Simplify the fraction by $a-b$
The power of a quotient is equal to the quotient of the power of the numerator and denominator: $\displaystyle\left(\frac{a}{b}\right)^n=\frac{a^n}{b^n}$
Multiplying fractions $\frac{1}{\sqrt{a-b}} \times \frac{a+b}{a^2-b^2}$
Simplify the fraction $\frac{a+b}{\sqrt{a-b}\left(a^2-b^2\right)}$
When multiplying exponents with same base you can add the exponents: $\sqrt{a-b}\left(a-b\right)$
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