# Evaluate Using the Given Value x^2+y^2+ax+by+c=0

Use the quadratic formula to find the solutions.
Substitute the values , , and into the quadratic formula and solve for .
Simplify.
Simplify the numerator.
Multiply by .
Apply the distributive property.
Multiply by .
Simplify the expression to solve for the portion of the .
Simplify the numerator.
Multiply by .
Apply the distributive property.
Multiply by .
Change the to .
Factor out of .
Factor out of .
Factor out of .
Rewrite as .
Move the negative in front of the fraction.
Simplify the expression to solve for the portion of the .
Simplify the numerator.
Multiply by .
Apply the distributive property.
Multiply by .
Change the to .
Factor out of .
Factor out of .
Factor out of .
Rewrite as .
Move the negative in front of the fraction.
The final answer is the combination of both solutions.
Evaluate Using the Given Value x^2+y^2+ax+by+c=0

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