document.write( "Question 100957: Solve the equation by completing the square\r
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document.write( "x^2 + 15 = -10x \n" );
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Algebra.Com's Answer #73467 by edjones(8007)![]() ![]() You can put this solution on YOUR website! x^2 + 15 = -10x \n" ); document.write( "x^2+10x+15=0 make equation = 0 \n" ); document.write( "x^2+10x=-15 put the constant on the right side. \n" ); document.write( "x^2+10x+25=-15+25 divide the coefficient of x in half and square it to get the new constant and add it to both sides. \n" ); document.write( "(x+5)^2=10 factor the left side. \n" ); document.write( "x+5=+-sqrt(10) get sqrt of both sides. \n" ); document.write( "x= -5+sqrt(10), -5-sqrt(10) \n" ); document.write( "Ed \n" ); document.write( " |