Question 65636
Is it:
1) {{{sqrt(2x+1) = 3}}} or:
2) {{{sqrt(2x) + 1 = 3}}}

If it's equation 1), then:
{{{sqrt(2x+1) = 3}}} Square both sides.
{{{2x+1 = 9}}} Now subtract 1 from both sides.
{{{2x = 8}}} Finally, divide both sides by 2.
{{{x = 4}}}

If it's equation 2), then:
{{{sqrt(2x)+1 = 3}}} Subtract 1 from both sides.
{{{sqrt(2x) = 2}}} Now square both sides.
{{{2x = 4}}} Finally, divide both sides by 2.
{{{x = 2}}}