SOLUTION: x^2-8x-4=0 ?? solve each equation by completing the square thanks for your help!!!

SOLUTION: x^2-8x-4=0 ?? solve each equation by completing the square thanks for your help!!!

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Question 641790: x^2-8x-4=0 ??
solve each equation by completing the square thanks for your help!!!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Do it like this one.
==========================
4x^2+12x-7=0
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Divide by a, the coeffient of x^2

c = (b/2)^2 = (3/2)^2 = 9/4
Add c to both sides

x + 3/2 = � 2
x = -3/2 � 2

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