document.write( "Question 890743: pls help me to answer: the roots of quadratic equation x^2-7x+c differ by 1. find c. \n" ); document.write( "

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\n" ); document.write( "pls help me to answer: the roots of quadratic equation x^2-7x+c differ by 1. find c.
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document.write( "Let larger root be L
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document.write( "Then smaller root = L - 1
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document.write( "Sum of roots = L + L - 1, or 2L - 1
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document.write( "Also, sum of roots = , or , or 7
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document.write( "Therefore, 2L - 1 = 7
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document.write( "2L = 8
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document.write( "L, or larger root = , or 4
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document.write( "Smaller root = 4 - 1, or 3\r
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document.write( "Product of roots = 4(3), or 12 
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document.write( "Also, product of roots = , or _______  \n" );
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