document.write( "Question 129911: g squared minus 4g minus 45 = 0 \n" ); document.write( "
Algebra.Com's Answer #94895 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"g%5E2-4g-45=0\" Start with the given equation\r
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\n" ); document.write( "\n" ); document.write( "\"%28g-9%29%28g%2B5%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( "\"g-9=0\" or \"g%2B5=0\" \r
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\n" ); document.write( "\n" ); document.write( "\"g=9\" or \"g=-5\" Now solve for g 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( " \"g=9\" or \"g=-5\" \r
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\n" ); document.write( "\n" ); document.write( "Notice if we graph \"y=x%5E2-4x-45\" (just replace g with x) we can see that the roots are \"x=9\" and \"x=-5\" . 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%5E2-4x-45%29+\"
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