D. Combine like terms
Explanations:The given equation is:
[tex]2(x-4)^2-3=8[/tex]To write the equation in standard form, the first step is to collect like terms
3 and 8 are like terms, and they should come together.
The equation, after the first step, will therefore become:
[tex]\begin{gathered} 2(x-4)^2=8\text{ + 3} \\ 2(x-4)^2=\text{ 11} \end{gathered}[/tex]