Question 852133
The square of {{{sqrt(2x)+4}}} does not equal {{{2x+4}}}.
Using the FOIL method,
{{{(sqrt(2x)+4)(sqrt(2x)+4)=2x+4*sqrt(2x)+4*sqrt(2x)+16}}}
{{{(sqrt(2x)+4)^2=2x+8*sqrt(2x)+16}}}
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