document.write( "Question 132220: Solve. 7x + x(x-3) = 0\r
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document.write( "Also, find the x-intercepts of f(x) = 7x + x(x+3)\r
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document.write( "a. what are the solutions?
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document.write( "b. what are the x-intercepts? \n" );
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Algebra.Com's Answer #96652 by edjones(8007)![]() ![]() You can put this solution on YOUR website! The solutions ARE the x intercepts (when y (or f(x)) equals 0. \n" ); document.write( "7x + x(x-3) = 0 \n" ); document.write( "7x+x^2-3x=0 \n" ); document.write( "x^2+4x=0 \n" ); document.write( "x(x+4)=0 \n" ); document.write( "x=0, x=-4 \n" ); document.write( ".\r \n" ); document.write( "\n" ); document.write( "7x + x(x+3)=0 \n" ); document.write( "7x+x^2+3x=0 \n" ); document.write( "x^2+10x=0 \n" ); document.write( "x=0, x=-10 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |