SOLUTION: Use a quadratic formula to solve the equation x^2-7x-6=0

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Question 1009940: Use a quadratic formula to solve the equation
x^2-7x-6=0
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

x%5E2-7x-6=0

x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-%28-7%29+%2B-+sqrt%28+%28-7%29%5E2-4%2A1%2A%28-6%29+%29%29%2F%282%2A1%29+
x+=+%287+%2B-+sqrt%2849%2B24+%29%29%2F2+
x+=+%287+%2B-+sqrt%2873+%29%29%2F2+
x+=+%287+%2B-+8.544003745317531%29%2F2+
x+=+%287+%2B-+8.5%29%2F2+
solutions:
x+=+%287+%2B+8.5%29%2F2+
x+=+15.5%2F2+
x+=+7.75+
or
x+=+%287+-+8.5%29%2F2+
x+=+-1.5%2F2+
x+=+-0.75+
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+x%5E2-7x-6%29+