SOLUTION: 1. Given the problem: x^2-4x=8 A. Complete the trinomial square ( remember that what ever ou do to the left side, of the equation. you do to the right side.) B. Solve the

Algebra ->  Trigonometry-basics -> SOLUTION: 1. Given the problem: x^2-4x=8 A. Complete the trinomial square ( remember that what ever ou do to the left side, of the equation. you do to the right side.) B. Solve the      Log On


   

Question 479177: 1. Given the problem: x^2-4x=8
A. Complete the trinomial square ( remember that what ever ou do to the left side, of the equation. you do to the right side.)


B. Solve the equation from A. Express you answer in simplest radical form.

thank you
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-4x=8
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a = 1
b = -4
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c = (b/a)^2 = 4
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x%5E2-4x=8
x%5E2+-+4x+%2B+4+=+12
%28x+-+2%29%5E2+=+12
x+-+2+=+sqrt%2812%29
x+=+2+%2B+2sqrt%283%29
and
x+=+2+-+2sqrt%283%29