Respuesta :

Step-by-step explanation:

Square root is equivalent to 1/2 power:

[tex] {(9 {a}^{16} {b}^{36} )}^{ \frac{1}{2} } [/tex]

Square root of 9 is 3. Multiply the exponents by 1/2 to get:

[tex] 3{a}^{8} {b}^{18} [/tex]