SOLUTION: I am in need of help Solve by using the quadratic formula X^2=5x+8 Thank you

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Question 93535: I am in need of help
Solve by using the quadratic formula X^2=5x+8
Thank you

Found 2 solutions by checkley75, chitra:
Answer by checkley75(3666)   (Show Source): You can put this solution on YOUR website!
x^2-5x-8=0

x=(5+-sqrt[-5^2-4*1*-8])/2*1
x=(5+-sqrt[25+32])/2
x=(5+-sqrt57)/2
x=(5+7.55)/2
x=12.55/2
x=6.275 answer.
x=(5-7.25)/2
x=-2.25/2
x=-1.125 answer.

Answer by chitra(359)   (Show Source): You can put this solution on YOUR website!
The given equation is:



This can be written as :




Comparing the above equation with the standard equation, that is

We see that a = 1, b = -5 and c = -8

The quadratic formula is given by:




substituting for the values of a,b and c we get:







Thus the solution.

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