SOLUTION: Solve Equation by completing square X^2-3x-4=0

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Question 629878: Solve Equation by completing square X^2-3x-4=0
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2-3x-4=0
Use the formula a%5E2-2ab%2Bb%5E2=%28a-b%29%5E2

%28x-3%2F2%29%5E2-25%2F4=0
%28x-3%2F2%29%5E2=25%2F4
x-3%2F2=5%2F2 or x-3%2F2=-5%2F2
x=4 or x=-1
Answer: -1, 4