A valid step to solve the given algebraic expression is
[tex]( \sqrt[4]{2x} )^{4}= (-\sqrt[4]{x+3})^{4}\\[/tex].
What is algebraic expression?
An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations.
[tex]\sqrt[4]{2x}+\sqrt[4]{x+3} = 0\\ \\ \sqrt[4]{2x} = -\sqrt[4]{x+3}\\\\( \sqrt[4]{2x} )^{4}= (-\sqrt[4]{x+3})^{4}\\[/tex]
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