document.write( "Question 1170374: If F(x) = ax^2+bx+c, and F(x+5) = x^2+9x-7, find the sum of a+b+c.
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Algebra.Com's Answer #795256 by ikleyn(52915) $\"\"$ $\"About$

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document.write( "The sum   a + b + c  is the value F(1)  of the polynomial  F(x), when the argument is equal to 1.\r\n" );
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document.write( "In order for the argument would be 1 in F(x+5), we should take x= -4.\r\n" );
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document.write( "THEREFORE,  a + b + c = F(1) = F(-4 +5) =  = -27.    ANSWER\r\n" );
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