If you just want to solve it put the numbers in instead of the letters and you will get an answer but if you want to rearrange the formula or solve the equation then follow these simple steps
1) get rid of fractions by timesing by the fraction
2) move all of the x's (if you want x to be the subject) to the same side
3) if you cannot get rid of the other values on one side by taking them away( subtraction) or dividing them away then take a factor of x
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d = a - 2bc
The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is 0.
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The quadratic formula can be used to solve an equation only if the highest degree in the equation is 2.
The quadratic formula is used to solve the quadratic equation. Many equations in which the variable is squared can be written as a quadratic equation, and then solved with the quadratic formula.