document.write( "Question 51988: Find the x intercepts.
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document.write( "y=x^2-9x+20 \n" );
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Algebra.Com's Answer #34669 by THANApHD(104)![]() ![]() You can put this solution on YOUR website! intercepts mean th x's values when the y = 0.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "0=x^2-9x+20 \n" ); document.write( "0=x^2-5x-4x+20 \n" ); document.write( "0=x(x-5)-4(x-5) \n" ); document.write( "0=(x-4)(x-5)\r \n" ); document.write( "\n" ); document.write( "so either one this must be zero\r \n" ); document.write( "\n" ); document.write( "x-4 = 0 or x-5=0 \n" ); document.write( "x= 4 or x=5 \n" ); document.write( " |