document.write( "Question 767787: Dear Ma'am/ Sir,
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document.write( " Please help me in solving this equation, what are the steps that I should do? Thank you very much for helping me. Here is the question: Find the quadratic equation whose roots are twice the roots of 4x^2+8x-5=0.
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document.write( "Thanks Again! \n" );
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Algebra.Com's Answer #467836 by tommyt3rd(5050)![]() ![]() You can put this solution on YOUR website! ax^2+bx+c \n" ); document.write( "4x^2+8x-5=0\r \n" ); document.write( "\n" ); document.write( "since a*c=-20\r \n" ); document.write( "\n" ); document.write( "we use 10 and -2 as follows\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x^2+10x-2x-5=0\r \n" ); document.write( "\n" ); document.write( "2x(2x+5)-1(2x+5)=0\r \n" ); document.write( "\n" ); document.write( "(2x-1)(2x+5)=0\r \n" ); document.write( "\n" ); document.write( "so x=1/2 or x=-5/2\r \n" ); document.write( "\n" ); document.write( "and so \r \n" ); document.write( "\n" ); document.write( "(x-1)(x+5)=0\r \n" ); document.write( "\n" ); document.write( "x^2-6x-5=0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( ":) \n" ); document.write( " |