Can someone check my calculation please?
Question: (8x)^1/3 x x^3/4
My working: (8x)^1/3 x x^3/4
2x^1/3 x x^3/4
= 2x^13/12
Grateful for your comments.
Cromlix
This is nearly impossible to read because you're using x to represent both $\displaystyle x$ and $\displaystyle \times$.
I assume what you are writing is
$\displaystyle (8x)^{\frac{1}{3}}\times x^{\frac{3}{4}}$
$\displaystyle = 8^{\frac{1}{3}} \times x^{\frac{1}{3}} \times x^{\frac{3}{4}}$
$\displaystyle = 2x^{\frac{1}{3} + \frac{3}{4}}$
$\displaystyle = 2x^{\frac{4}{12} + \frac{9}{12}}$
$\displaystyle = 2x^{\frac{13}{12}}$.
So I agree with your final answer, but please learn some LaTeX to avoid confusing the people who are trying to help you.