Question

What is the simplest form of the radical expression?

4 times cube root of 3x plus 5 times cube root of 10x

a) 9 cubed root 13 x
b) 27 cubed root 10x
c) 27 cubed root 3 x
d) none

Answer 1

\(\large 4 \sqrt[3]{3x}+5\sqrt[3]{10x}\)

Since they don't have the same radical, you cannot add them, therefore this is the simplest form.