Question 731318
2 square root of 2x+4 end of square root then minus 5=11
{{{2*sqrt(2x+4) - 5}}} = 11
Add 5 to both sides
{{{2*sqrt(2x+4)}}} = 16
Divide both sides by 2
{{{sqrt(2x+4) }}} = 8
square both sides
2x + 4 = 64
subtract 4 from both sides
2x = 60
divide both sides by 2
x = 30
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Check this on a calc: enter {{{2*sqrt(2(30)+4)}}} - 5, results is 11