document.write( "Question 585184: I don't get this one, I get stuck on the 3rd step.\r
\n" ); document.write( "\n" ); document.write( "(x+9)^2=18\r
\n" ); document.write( "\n" ); document.write( " =x^2+81-18=0
\n" ); document.write( " =x^2+63=0\r
\n" ); document.write( "\n" ); document.write( "I don't know what to do after this since there is no square root of 63 that is a whole number. help?
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Algebra.Com's Answer #373193 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
(x+9)^2 = 18
\n" ); document.write( "If you FOIL(x+9)(x+9),you should get
\n" ); document.write( "x^2 + 18x + 81 = 18
\n" ); document.write( "x^2 + 18x + 63 = 0
\n" ); document.write( "this will not factor, use the quadratic formula to find x
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