Question 769360
{{{9(t-7)^2-18=0}}}<P>
{{{9(t-7)^2 = 18}}}<P>
You can now divide both sides by 9, or take the square root of both sides.  I will divide both sides by 9.<P>
{{{(t-7)^2 = 2}}}<P>
Take the square root of both sides.<P>
{{{t-7 = sqrt(2)}}}<P>
{{{t = sqrt(2) + 7}}}