document.write( "Question 431928: How do you solve this problem by completing the square?\r
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document.write( "r^2 + 6r - 8 = 0 \n" );
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Algebra.Com's Answer #299607 by mananth(16946)![]() ![]() You can put this solution on YOUR website! r^2+6r=8\r \n" ); document.write( "\n" ); document.write( "r^2+6r+9 = 8+9 \n" ); document.write( "(r+3)^2=17 \n" ); document.write( "take the square root \n" ); document.write( "(r+3)= +/- \n" ); document.write( "r= -3+ \n" ); document.write( "r= -3- \n" ); document.write( " \n" ); document.write( " |