SOLUTION: completing the square x squared+5x=8any help would be appreciated thank you

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Question 424630: completing the square x squared+5x=8any help would be appreciated thank you
Found 2 solutions by Alan3354, nerdybill:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
completing the square x squared+5x = 8
x%5E2+%2B+5x+=+8
c+=+%28b%2F2a%29%5E2+=+%285%2F2%29%5E2+=+6.25
x%5E2+%2B+5x+%2B+6.25+=+14.25
%28x+%2B+2.5%29%5E2+=+14.25

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B5x+=+8
Take half the 'b' coefficient and square it to get [(1/2)(5)]^2 = 25/4
add it to both sides:
x%5E2%2B5x%2B25%2F4+=+8%2B25%2F4
%28x%2B5%2F2%29%28x%2B5%2F2%29+=+32%2F4%2B25%2F4
%28x%2B5%2F2%29%5E2+=+57%2F4