SOLUTION: Factor completely over the rational numbers: x^2-72

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Question 71061: Factor completely over the rational numbers: x^2-72
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
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