Collect like terms.
\[\sqrt{64{x}^{3}+(72{x}^{3}+1)}\]
Remove parentheses.
\[\sqrt{64{x}^{3}+72{x}^{3}+1}\]
Collect like terms.
\[\sqrt{(64{x}^{3}+72{x}^{3})+1}\]
Simplify \((64{x}^{3}+72{x}^{3})+1\) to \(136{x}^{3}+1\).
\[\sqrt{136{x}^{3}+1}\]
sqrt(136*x^3+1)
