SOLUTION: How do you work the problem x to the second minus x equals 8

Question 802409: How do you work the problem x to the second minus x equals 8
Answer by homeworkhedgehog(9) (Show Source): You can put this solution on YOUR website!

This is a quadratic equation. You can tell because 2 is the highest power. If you are solving for x, then you have to get all the terms on one side and an "=0" on the other. So you need to subtract 8 from both sides, resulting in . Now there at least two ways to solve this: Factoring, or the Quadratic Equation. This does not factor nicely, so we'll just use the Quadratic Equation .
Quadratic Standard Form is the form we need to use for this. Looking at the coefficients gives us our A=1, B=-1, and C=-8. We plug these into the equation to get our answer:

And that is about as far as we can go without using a calculator to simplify. If you want a decimal answer, you can plug into the calculator and to give you and
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