document.write( "Question 118177: Can you please help me with this i do not understand this?\r
\n" ); document.write( "\n" ); document.write( "Solve by factoring\r
\n" ); document.write( "\n" ); document.write( "x^2 - 9x = -20\r
\n" ); document.write( "\n" ); document.write( "thank you
\n" ); document.write( "julie
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Algebra.Com's Answer #86277 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"x%5E2-9x=-20\" Start with the given equation\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-9x%2B20=0\" Add 20 to both sides. \r
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\n" ); document.write( "\n" ); document.write( "\"%28x-5%29%28x-4%29=0\" Factor the left side (note: if you need help with factoring, check out this solver)\r
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\n" ); document.write( "\n" ); document.write( "Now set each factor equal to zero:\r
\n" ); document.write( "\n" ); document.write( "\"x-5=0\" or \"x-4=0\" \r
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\n" ); document.write( "\n" ); document.write( "\"x=5\" or \"x=4\" Now solve for x in each case\r
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\n" ); document.write( "\n" ); document.write( "So our answer is \r
\n" ); document.write( "\n" ); document.write( " \"x=5\" or \"x=4\" \r
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\n" ); document.write( "\n" ); document.write( "Notice if we graph \"y=x%5E2-9x%2B20\" we can see that the roots are \"x=5\" and \"x=4\" . So this visually verifies our answer.\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C0%2C+x%5E2-9x%2B20%29+\"
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