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Quadratic_Equations/369361: Use the quadratic formula to solve the equation.
x%5E2-5x=-9

1 solutions

Answer 263175 by priyavarat(1) on 2010-11-10 21:37:55 (Show Source):

You can put this solution on YOUR website!

x^2 - 5x + 9 = 0
x+=+%28-b+%2B-+sqrt%28b%5E2+-+4+%2Aa%2Ac%29%29%2F%282%2Aa%29
x+=+%28-%28-5%29+%2B-+sqrt%28%28-5%29%5E2+-+4+%2A1%2A9%29%29%2F%282%2A1%29
x+=+%285+%2B-+sqrt%28%2825+-+36%29%29%2F%282%29%29
x+=+%285+%2B-+sqrt%28%28-9%29%29%2F%282%29%29
x+=+%285+%2B-+%283i%29%2F%282%29%29
So x+=+%285-3i%29%2F2 or +x+=+%285+%2B+3i%29%2F2

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Recent problems solved by 'priyavarat'