Question 19347
{{{ sqrt(4x^2+x-3)=2x }}}
Take the sqrt over to the other side makes it square,
{{{(4x^2+x-3)=(2x)^2}}}
expanding the right hand side
{{{(4x^2+x-3)=4x^2}}}
cancelling out common terms
{{{x-3=0}}}
{{{x=3}}}
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-Prabhat