How do you rewrite with fractional exponents for sqrt((4mn)/(a^2b^2))4mna2b2?

1 Answer
Mar 6, 2018

(2(mn)^(1/2))/(ab)2(mn)12ab

Explanation:

Since we say that sqrt(x)=x^(1/2)x=x12, we can write the above as:

(4mn)^(1/2)/(a^2b^2)^(1/2)(4mn)12(a2b2)12

Since (xy)^z=x^zy^z(xy)z=xzyz, we can write:

(4^(1/2)m^(1/2)n^(1/2))/((a^2)^(1/2)(b^2)^(1/2))412m12n12(a2)12(b2)12

Some of these cancel out:

(2m^(1/2)n^(1/2))/(ab)2m12n12ab, and to make this look nicer, we can write:

(2(mn)^(1/2))/(ab)2(mn)12ab