Question 691361
{{{x^2-7x=5}}}
First make one side of the equation zero. Subtracting 5 from each side:
{{{x^2-7x-5=0}}}<br>
Now use the Quadratic Formula:
{{{x = (-(-7)+-sqrt((-7)^2-4(1)(-5)))/2(1)}}}
Simplifying...
{{{x = (-(-7)+-sqrt(49-4(1)(-5)))/2(1)}}}
{{{x = (-(-7)+-sqrt(49+20))/2(1)}}}
{{{x = (-(-7)+-sqrt(69))/2(1)}}}
{{{x = (7+-sqrt(69))/2}}}
which is short for:
{{{x = (7+sqrt(69))/2}}} or {{{x = (7-sqrt(69))/2}}}