SOLUTION: So, I need help getting walked through the steps of the quadratic equation. If a=1 , b=2.2 x10^-2 and c=-1.2 x10^-4, how does x= 4.5x10^-3? I got as far as -2.2x10^2 + or

SOLUTION: So, I need help getting walked through the steps of the quadratic equation. If a=1 , b=2.2 x10^-2 and c=-1.2 x10^-4, how does x= 4.5x10^-3? I got as far as -2.2x10^2 + or - squa

Question 840469: So, I need help getting walked through the steps of the quadratic equation. If a=1 , b=2.2 x10^-2 and c=-1.2 x10^-4, how does x= 4.5x10^-3?
I got as far as -2.2x10^2 + or - square root of 9.64x10^-4 and then don't know what to do or if it is right. PLEASE HELP!! I need to get comfortable with the quadratic equation. Thank you!
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
You have the values for a, b, and c, and you have these from a quadratic equation based on general form ;
just use the values in the general solution. Simplify and compute! What is the result?

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