SOLUTION: x^2-8x-4=0 ?? solve each equation by completing the square, thank you for the help I really need it.

SOLUTION: x^2-8x-4=0 ?? solve each equation by completing the square, thank you for the help I really need it.

Algebra.Com

Question 642216: x^2-8x-4=0 ??
solve each equation by completing the square, thank you for the help I really need it.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!

take half 'b', square it, and add to both sides:

take the square root of both sides:

so x can be two possibilities:

and

.
or approximately,
x = {-0.47, 8.47}

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