SOLUTION: solve by using the quadratic equation: x^2 + 8x = 3

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Question 234414: solve by using the quadratic equation:
x^2 + 8x = 3
Answer by mando271(42) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2+%2B+8x+=+3
x%5E2+%2B+8x+-3+=+0
the quadratic eauation is as follows, with a=1, b=8 and c=-3
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-8+%2B-+sqrt%28+8%5E2-4%2A1%2A-3+%29%29%2F%282%2A-3%29+
x+=+%28-8+%2B-+sqrt%2864-%28-12%29%29%29%2F-6
x+=+%28-8+%2B-+sqrt%2880%29%29%2F-6
x+=+%28-8+%2B-+sqrt%2816%2A5%29%29%2F-6
x+=+%28-8+%2B-+4sqrt%285%29%29%2F-6
x+=+%28-4+%2B-+2sqrt%285%29%29%2F-3