document.write( "Question 1107609: Solve this system by Substitution.\r
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document.write( " y = x^2 - 8 and 2x + y = 6\r
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Algebra.Com's Answer #722622 by Timnewman(323)![]() ![]() You can put this solution on YOUR website! Solve this system by Substitution.\r \n" ); document.write( "\n" ); document.write( "y = x^2 - 8 and 2x + y = 6 \n" ); document.write( " sol: \n" ); document.write( "y=x^2-8 ---1 \n" ); document.write( "2x+y=6 ---2 \n" ); document.write( "from 2, \n" ); document.write( "y=6-2x ---3 \n" ); document.write( "put 3 in 1 \n" ); document.write( "ie, x^2-8=6-2x \n" ); document.write( "x^2+2x-8-6=0 \n" ); document.write( "x^2+2x-14=0 \n" ); document.write( "then solve the resulting quadratic equation. \n" ); document.write( "GOOD LUCK! \n" ); document.write( " |