document.write( "Question 1026809: 1.) 9x^2+18x=-8 (solve by completing the square an coefficient of x^2 is 1) \r
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Algebra.Com's Answer #642095 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!
1.) 9x^2+18x=-8 (solve by completing the square an coefficient of x^2 is 1) \r
\n" ); document.write( "\n" ); document.write( "I'm looking for the processes of these. The book examples don't help.
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\n" ); document.write( "In response to: \"Comment from student: Thank you. It was 18 and not 19, sorry.\"
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\"9x%5E2+%2B+18x+=+-+8\"
\n" ); document.write( "\"9%28x%5E2+%2B+2x%29+=+9%28-+8%2F9%29\" ------ Factoring out 9 to get a coefficient of 1 on \"x%5E2\"
\n" ); document.write( "\"x%5E2+%2B+2x+=+-+8%2F9\"
\n" ); document.write( "\"x%5E2+%2B+2x+%2B+%28%281%2F2%29b%29%5E2+=+-+8%2F9+%2B+%28%281%2F2%29+%2A+b%29%5E2\" ---- Halving the value of b, squaring the result, then adding to both sides
\n" ); document.write( "\"x%5E2+%2B+2x+%2B+%28%281%2F2%29+%2A+2%29%5E2+=+-+8%2F9+%2B+%28%281%2F2%29+%2A+2%29%5E2\" ---- Substituting + 2 for b
\n" ); document.write( "\"x%5E2+%2B+2x+%2B+1%5E2+=+-+8%2F9+%2B+1%5E2\"
\n" ); document.write( "\"%28x+%2B+1%29%5E2+=+-+8%2F9+%2B+1\"
\n" ); document.write( "\"%28x+%2B+1%29%5E2+=+-+8%2F9+%2B+9%2F9\"
\n" ); document.write( "\"%28x+%2B+1%29%5E2+=+1%2F9\"
\n" ); document.write( "\"sqrt%28%28x+%2B+1%29%5E2%29+=+%22+%22%2B-+sqrt%281%2F9%29\" ------- Taking square root of both sides
\n" ); document.write( "\"x+%2B+1+=+%22+%22%2B-+1%2F3\"
\n" ); document.write( "\"x+=+%22+%22%2B-+1%2F3+-+1\"
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