document.write( "Question 72675: When the polynomial 3x^2-2x+5 is subracted from product of 2x-5 and 3x+2, the answer is ax^2+bx+c. Find the sum of a+b+c. \n" ); document.write( "

Algebra.Com's Answer #52048 by rmromero(383) $\"\"$ $\"About$

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document.write( "When the polynomial 3x^2-2x+5 is subracted from product of 2x-5 and 3x+2, the answer is ax^2+bx+c. Find the sum of a+b+c.\r
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document.write( "First step is to find the sum of 2x - 5 and 3x + 2
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document.write( "     (2x - 5) (3x + 2)
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document.write( "      6x^2 -11x - 10\r
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document.write( "The product minus 3x^2 - 2x + 5\r
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document.write( "                6x^2 -11x - 10
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document.write( "            -   3x^2 - 2x + 5
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document.write( "              __________________
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document.write( "                3x^2 - 9x - 15\r
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document.write( "Find the sum of a, b, and c\r
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document.write( "                     3x^2 - 9x - 15
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document.write( "                     |      |     |
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document.write( "                     a      b     c\r
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document.write( "            a = 3, b = -9, c = -15
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document.write( "           a + b + c = 3 +(-9) + (-15)
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document.write( "                     = 3 - 9 - 15
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document.write( "                     = -21 \n" );
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