SOLUTION: please explain how you solve for x in the following 3/x+2 + 7/x-2 = 3

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Question 29606: please explain how you solve for x in the following
3/x+2 + 7/x-2 = 3
Answer by atif.muhammad(135) About Me  (Show Source):
You can put this solution on YOUR website!
3%2Fx%2B2+%2B+7%2Fx-2+=+3 Make the denominator common
3%28x-2%29%2F%28x%2B2%29+%2B7%28x%2B2%29%2F%28x-2%29+=+3+ Get rid of the denominator
3%28x-2%29%2B7%28x%2B2%29=3%28x%2B2%29%28x-2%29 Multiply out brackets
3x+-+6+%2B+7x+%2B+14+=+3+%28x%5E2+-+4%29+
+10x+%2B+8+=+3x%5E2+-+12 Form a quadratic equation and make it look neat.
+0+=+3x%5E2+-+10x+-+20+
3x%5E2+-+10x+-+20+=+0 Use the formula on it.
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%2810+%2B-+sqrt%28100+-+4+%2A+3+%2A+-20%29%29%2F%282%2A3%29
x+=+%2810+%2B-+sqrt%28+340+%29%29%2F%286%29+
I'm sure you can solve the formula from there.