document.write( "Question 8347: I do not understand how to do the Quadratic Equation r2(squared) + 10r + 9 =0 \n" ); document.write( "
Algebra.Com's Answer #4603 by bonster(299)\"\" \"About 
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\"r%5E2+%2B+10r+%2B+9\" =0
\n" ); document.write( "what two numbers can you multiply to get the product 9, yet at the same time, has the sum of 10? 9 and 1\r
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\n" ); document.write( "\n" ); document.write( "(r+1)(r+9)=0\r
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\n" ); document.write( "\n" ); document.write( "When r+1=0
\n" ); document.write( "r=-1\r
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\n" ); document.write( "\n" ); document.write( "When r+9=0
\n" ); document.write( "r=-9
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