document.write( "Question 408892: Use the method of completing the square to solve the equation 3 = 2x2 + 8x \n" ); document.write( "

Algebra.Com's Answer #287967 by nerdybill(7384) $\"\"$ $\"About$

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3 = 2x^2 + 8x
\n" ); document.write( "3 = 2(x^2 + 4x)
\n" ); document.write( "3+8 = 2(x^2 + 4x + 4)
\n" ); document.write( "11 = 2(x+2)^2
\n" ); document.write( "11/2 = (x+2)^2
\n" ); document.write( "sqrt(11/2) = x+2
\n" ); document.write( "sqrt(11/2) - 2 = x
\n" ); document.write( ".345 = x\r
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