document.write( "Question 350050: Solve the equation\r
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document.write( "x^2=-5x+24\r
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document.write( "I don't know what I am doing wrong :( \n" );
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Algebra.Com's Answer #250197 by Jk22(389)![]() ![]() You can put this solution on YOUR website! x^2=-5x+24 |put all on Lhs : +5x-24 on both side \n" ); document.write( " \n" ); document.write( "x^2+5x-24=0 | use Viete's method : (x+a)(x+b)=x^2+(a+b)x+ab, here a=8, b=-3 \n" ); document.write( " \n" ); document.write( " hence a+b=8-3=5, ab=8*(-3)=-24 \n" ); document.write( " \n" ); document.write( "(x+8)(x-3)=0, hence x=-8, or x=3 \n" ); document.write( " \n" ); document.write( "Verification : \r \n" ); document.write( "\n" ); document.write( "(-8)^2=64, -5*(-8)+24=40+24=64\r \n" ); document.write( "\n" ); document.write( "3^2=9, -5*3+24=-15+24=9 \n" ); document.write( " |