Question 71061
x^2-72 using the quadratic equation we get
x=(-b+-sqrt[b^2-4*a*c]/2a
x=(0+-sqrt[0-4*1*-72])/2
x=(+-sqrt288)/2
x=+-16.97/2
x=16.97/2
x=8.485 answer
x=-16.97/2
x=-8.485 answer