Question

How do you simplify `3sqrt(y^4)* 3sqrt(81y^5)`?

Answer 1

`81y^4sqrty=81y^(9/2)`

Explanation:

We can rewrite:

`3sqrt(y^4)xx3sqrt(81y^5)=>`

`3xxsqrt(y^2)xxsqrt(y^2)xx3xxsqrt81xxsqrt(y^2)xxsqrt(y^2)xxsqrty=>`

`3xx3xxsqrt(9^2)xxsqrt(y^2)xxsqrt(y^2)xxsqrt(y^2)xxsqrt(y^2)xxsqrty=>`

`9xx9xxyxxyxxyxxyxxsqrty=>`

`81y^4sqrty=81y^(9/2)`