Simplify 3*the cube root of 24 + 6*the cube root of 81

Question

Simplify:

Three times the cube root of twenty-four plus six times the cube root of eighty-one.

Thanks,
Struggling Algebra Student

Answer 1

start:3*(24)^1/3 + 6*(81)^1.3

24=3*8 and 81=3*27

kube root(8)=2 & kube root(27)=3

so yu hav 3*2*(3^1/3)+6*3*(3^1.3)

=(6+18)*(3^1/3)

=24*(3^1/3)

kube root(3)=1.442244...

Answer 2

Let me know if you have any doubts?