Question

How do you add `3""^3sqrt(2)+5""^3sqrt(16)`?

Answer 1

`3root(3)(2)+5root(3)(16)` needs to be simplified in order to add.In order to add radicals, index and radicand(inside the radical) need to be the same.

Here is how you add the expression:
`3root(3)(2)+5root(3)(16)=`
`3root(3)(2)+5root(3)(8*2)=`
`3root(3)(2)+5(root(3)(8)*root(3)(2))=`
`3root(3)(2)+5*2*root(3)(2)=`
`3root(3)(2)+10root(3)(2)=`
`13root(3)(2)`