document.write( "Question 956891: solve the following quadratic equations using the completing the squares.
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document.write( "A.) x2 + 6x - 12 = 0
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document.write( "B.) x2 + 2x = 24 \n" );
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Algebra.Com's Answer #584615 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! solve the following quadratic equations using the completing the squares. \n" ); document.write( "A.) x2 + 6x - 12 = 0 \n" ); document.write( "(x^2+6x+9)-9-12=0 \n" ); document.write( "(x+3)^2-21=0 \n" ); document.write( "(x+3)^2=21 \n" ); document.write( "take sqrt of both sides \n" ); document.write( "x+3=±√21 \n" ); document.write( "x=-3+√21 \n" ); document.write( "or \n" ); document.write( "x=-3-√21 \n" ); document.write( ".. \n" ); document.write( "B.) x2 + 2x = 24 \n" ); document.write( "(x^2+2x+1)=24+1 \n" ); document.write( "(x+1)^2=25 \n" ); document.write( "take sqrt of both sides \n" ); document.write( "x+1=±√25 \n" ); document.write( "x=-1±5 \n" ); document.write( "x=-6 \n" ); document.write( "or \n" ); document.write( "x=4 \n" ); document.write( " |