SOLUTION: x squared - 7x = -4 could you please explain how you would answer this thank you

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Question 669194: x squared - 7x = -4
could you please explain how you would answer this
thank you
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x squared - 7x = -4
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x^2 -7x + 4 = 0
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Use the Quadratic Formula to get:
x = [7 +- sqrt(49-4*1*4)]/2
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x = [7 +- sqrt(33)]/2
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x = (7/2) + (1/2)sqrt(33) or x = (7/2)-(1/2)sqrt(33)
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Cheers,
Stan H.