Math
posted by Emir .
Solve the Following quadratic equations by completing the square.
7x(squared)+4x13=8

Math 
Steve
7x^2 + 4x  13 = 8
multiply by 7 to get a perfect square on the 2nddegree term:
49x^2 + 28x = 147
49x^2 + 28x + 4 = 147 + 4
(7x+2)^2 = 151
7x = 2 ± √151
x = (2 ± √151)/7
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