Question 1103831
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I would guess that the equation is in fact<br>
{{{3x^2 = 3*3+3*6}}}<br>
instead of
{{{(3x)^2 = 3*3+3*6}}}
as interpreted by the other tutor....<br>
Then
{{{3x^2 = 9+18 = 27}}}
{{{x^2 = 9}}}
Giving the solutions x=3 and x=-3.