Question 80825: Can someone please check this for me?
solve by using the quadratic formula
x^2=5x+8
x^2=25+8
=-5+-sqrt33/2 Found 2 solutions by stanbon, Earlsdon:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! solve by using the quadratic formula
x^2=5x+8
x^2-5x-8=0
x=[5+-sqrt(25-4*-8)]/2
x=[5+-sqrt47]/2
x=(5+sqrt47)/2 or x=[5-sqrt47]/2
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x^2=25+8
x^2-25x-8=0
x=[25+-sqrt(625-4*-8)]/2
x=[25+-sqrt657]'2
x=[25+sqrt657]/2 or x=[25-sqrt657]/2
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Cheers,
Stan H.
You can put this solution on YOUR website! Solve for x:
First, get your equation into the standard form for quadratic equations: by subtracting 5x from both sides then subtracting 8 from both sides. Compare this with the standard form and you can see that, in your equation, a = 1, b = -5, and c = -8. Now apply the quadratic formula: to your equation. Simplify this.
The solutions are: or
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