Question 589717
{{{10x^2 = 100 }}}
divide both sides by 10:
{{{(10x^2)/10 = 100/10 }}}
{{{x^2 = 10 }}}
take the square root of both sides:
{{{sqrt(x^2) = sqrt(10) }}}
{{{x = sqrt(10) }}} (plus or minus)