document.write( "Question 1198778: Solve the equation for x. Square root of 56-x = x\r
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document.write( "The correct answer is one of the following. Which one is correct?\r
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document.write( "A) x=7 only\r
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document.write( "B) x=7, x=-8\r
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document.write( "C) x=-8 only \r
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document.write( "D) x=7, x=8 \n" );
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Algebra.Com's Answer #832432 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve the equation for x. Square root of 56-x = x \n" ); document.write( "-------- \n" ); document.write( "If you mean \n" ); document.write( "Square both sides \n" ); document.write( "56-x = x^2 \n" ); document.write( "x^2 + x - 56 = 0 \n" ); document.write( "(x-7)*(x+8) = 0 \n" ); document.write( "==================== \n" ); document.write( "check each result \n" ); document.write( " \n" ); document.write( " |