document.write( "Question 532007: Please!! I need help to solve by completing the square:\r
\n" ); document.write( "\n" ); document.write( "2x^2 -9x + 4 = 0\r
\n" ); document.write( "\n" ); document.write( "and
\n" ); document.write( "4 x^2 + x = 0\r
\n" ); document.write( "\n" ); document.write( "Thank you so much for your help!!
\n" ); document.write( "

Algebra.Com's Answer #350653 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Please!! I need help to solve by completing the square:
\n" ); document.write( "2x^2 -9x + 4 = 0
\n" ); document.write( "x^2 -(9/2)x = -2
\n" ); document.write( "x^2 -(9/2)x + (9/4)^2 = -2 + (9/4)^2
\n" ); document.write( "---
\n" ); document.write( "(x-(9/4))^2 = -32/16 + 81/16
\n" ); document.write( "---
\n" ); document.write( "(x-(9/4))^2 = 49/16
\n" ); document.write( "---
\n" ); document.write( "x-(9/4) = +-7/4
\n" ); document.write( "===
\n" ); document.write( "x = +(7/4)+(9/4) or x = -(7/4)+(9/4)
\n" ); document.write( "----
\n" ); document.write( "x = 4 or x = 1/2
\n" ); document.write( "==========================
\n" ); document.write( "
\n" ); document.write( "and
\n" ); document.write( "4 x^2 + x = 0
\n" ); document.write( "x^2 + (1/4)x = 0
\n" ); document.write( "x^2 + (1/4)x + (1/8)^2 = (1/8)^2
\n" ); document.write( "(x+(1/8))^2 = (1/8)^2
\n" ); document.write( "(x + (1/8)) = +-(1/8)
\n" ); document.write( "x = (1/8)-(1/8) or x = -(1/8)-(1/8)
\n" ); document.write( "x = 0 or x = -1/4
\n" ); document.write( "=====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "=================
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