SOLUTION: how do I find the sum of the solutions of the equation x^2-9x+20=0

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Question 982274: how do I find the sum of the solutions of the equation x^2-9x+20=0
Found 2 solutions by solver91311, MathTherapy:
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


Factor the quadratic.

Find the two solutions by the zero product rule.

Add the two solutions.

John

My calculator said it, I believe it, that settles it

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

how do I find the sum of the solutions of the equation x^2-9x+20=0


Sum of roots/zeroes/solutions to a quadratic equation is: 

With a = 1, and b = - 9, 

Sum of roots/zeroes/solutions to this quadratic equation is: , or  

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