document.write( "Question 287428: Here is my question:\r
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document.write( "Find all possible solutions. Give your answeres in increasing order.\r
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document.write( "sqrt(-3x+5)-5=9x\r
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document.write( "Thanks so much! \n" );
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Algebra.Com's Answer #208315 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Find all possible solutions. Give your answers in increasing order. \n" ); document.write( " \n" ); document.write( "Add 5 to both sides \n" ); document.write( " \n" ); document.write( "square both sides: \n" ); document.write( "-3x + 5 = (9x+5)^2 \n" ); document.write( "FOIL the right side \n" ); document.write( "-3x + 5 = 81x^2 + 90x + 25 \n" ); document.write( ": \n" ); document.write( "Write as quadratic equation \n" ); document.write( "0 = 81x^2 + 90x + 3x + 25 - 5 \n" ); document.write( "81x^2 + 93x + 20 = 0 \n" ); document.write( "Use the quadratic equation to find x; \n" ); document.write( " \n" ); document.write( "In this problem a=81; b=93; c=20 \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "Two solutions \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "x = \n" ); document.write( "x = -.28659 \n" ); document.write( "and \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "x = \n" ); document.write( "x = -.86156 \n" ); document.write( ": \n" ); document.write( "Check both of these solutions in the original equation, \n" ); document.write( "only x = -.28659 is a solution \n" ); document.write( " |