document.write( "Question 1209226: Let a and b be the solutions to 7x^2 + x - 5 = 0. Compute (a - 4) + (b - 4). \n" ); document.write( "

Algebra.Com's Answer #847870 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Let a and b be the solutions to 7x^2 + x - 5 = 0. Compute (a - 4) + (b - 4).
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document.write( "(a-4) + (b-4) = (a+b) - 8.\r\n" );
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document.write( "For (a+b), according to the Vieta's theorem, we hasve\r\n" );
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document.write( "    a + b = .\r\n" );
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document.write( "Therefore,  (a-4) + (b-4) = (a+b) -8 =  - 8 = -8.    ANSWER\r\n" );
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