Simplify the expression. Assume all variables represent positive real numbers.
-$$4 \sqrt [ 3 ] { a } + \sqrt [ 3 ] { 27 a }$$
A) $4 \sqrt [ 3 ] { a } + \sqrt [ 3 ] { 27 a }$
B) $12 \sqrt [ 3 ] { a }$
C) $5 \sqrt [ 3 ] { 27 a }$
D) $7 \sqrt [ 3 ] { \mathrm { a } }$

Question

Quizplus · Accepted Answer

The expression simplifies to $7 \sqrt [ 3 ] { a }$ because $\sqrt [ 3 ] { 27 a } = 3\sqrt [ 3 ] { a }$, so adding $4\sqrt [ 3 ] { a }$ gives $7\sqrt [ 3 ] { a }$.

Simplify the Expression 4a3+27a34 \sqrt [ 3 ] { a } + \sqrt [ 3 ] { 27 a }43a​+327a​

Simplify the Expression $4 \sqrt [ 3 ] { a } + \sqrt [ 3 ] { 27 a }$