## College Algebra (6th Edition)

$5x^2|y|^3$
$$(25x^4y^6)^{\frac{1}{2}}$$ When an exponential expression is raised to a power, multiply the exponents: $$=\sqrt{25}x^{(4\times \frac{1}{2})}y^{(6\times \frac{1}{2})}$$ If the index is even, the solution to an expression with a rational exponent is non-negative: $$=5x^2|y|^3$$