SOLUTION: 3. 8x²-16x-4 over 4.

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Question 201847: 3. 8x²-16x-4 over 4.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(8x²-16x-4)/4
2x^2-4x-1
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(4+-sqrt[-4^2-4*2*-1])/2*2
x=(4+-sqrt[16+8])/4
x=(4+-sqrt24)/4
x=(4+-4.9)/4
x=(4=4.9)/4
x=8.9/4
x=2.225 ans.
x=(4-4.9)/4
x=-.9/4
x=-.225 ans.