document.write( "Question 25681: Can someone please help me with this problem? I am stumped! This is the problem: \r
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document.write( "Show how the quadratic formula can be expressed as: \r
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document.write( "let p= and q=
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document.write( "It says that it can be derived by \"completing\" the square of a quadratic equation. A response to this problem would really make my day! \n" );
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Algebra.Com's Answer #13802 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let p= \n" ); document.write( "\n" ); document.write( "It says that it can be derived by \"completing\" the square of a quadratic equation. A response to this problem would really make my day! \r \n" ); document.write( "\n" ); document.write( "------------------------------------------------------------------------------- \n" ); document.write( "SUBSTITUTE IN THE ANSWER GIVEN BELOW YOUR NOMENCLATURE THAT \n" ); document.write( " p= \n" ); document.write( "LET THE QUADRATIC BE \n" ); document.write( " AX^2+BX+C=0...SINCE THIS IS A QUADRATIC ,A IS NOT EQUAL TO ZERO..SO DIVIDING WITH A WE GET \n" ); document.write( "X^2+BX/A+C/A=0 \n" ); document.write( "WRITE IT AS A PERFECT SQUARE USING X^2 AND X TERMS \n" ); document.write( "{X^2+2*X*(B/2A)+(B/2A)^2}-(B/2A)^2+C/A=0 \n" ); document.write( "{X+(B/2A)}^2=(B/2A)^2-C/A=B^2/4A^2-C/A=(B^2-4AC)/4A^2 \n" ); document.write( "TAKING SQUARE ROOT \n" ); document.write( "X+B/2A= \n" ); document.write( "OR \n" ); document.write( " \n" ); document.write( "THIS IS THE GENERAL METHOD OF DERIVATION OF ROOTS OF A QUADRATIC EQUATION. \n" ); document.write( " |