document.write( "Question 76465: Divide 5x^3 - 5x + 1 by x -3\r
\n" ); document.write( "\n" ); document.write( "Do i have the right answer 5x^2-15x-40
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Algebra.Com's Answer #54850 by bucky(2189)\"\" \"About 
You can put this solution on YOUR website!
Check to make sure that you copied the problem correctly. If the problem is correct as
\n" ); document.write( "you posted it, the answer is \"5x%5E2+%2B+15x+%2B+40+%2B%28121%2F%28x-3%29%29\"
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\n" ); document.write( "If you posted the problem correctly, then I suspect that you are adding not subtracting
\n" ); document.write( "during the division process.
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\n" ); document.write( "For example. You got the first division correct ... and the first quotient term is, as you
\n" ); document.write( "found, \"5x%5E2\". When you multiply this back times the divisor \"x-3\" the product is:
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\n" ); document.write( "\"5x%5E3+-+15x%5E2\"
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\n" ); document.write( "when you subtract this from \"5x%5E3+%2B+0x%5E2\" you CHANGE THE SIGNS of \"5x%5E3+-+15x%5E2\" to
\n" ); document.write( "get \"-5x%5E3+%2B+15x%5E2+\" and then you add this to \"5x%5E3+%2B+0x%5E2\". The result is:
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\n" ); document.write( "\"%2B15x%5E2\".
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\n" ); document.write( "You then bring down the -5x term. So the next division is \"x-3\" into \"15x%5E2+-+5x\".
\n" ); document.write( "This division will result in +15x and multiplying it back the \"%2B15x\" times \"x-3\"
\n" ); document.write( "results in \"15x%5E2+-+45x\". Subtract this from \"15x%5E2+-+5x\". Do that by changing the
\n" ); document.write( "signs to \"-15x%5E2+%2B45x\" and adding it to \"15x%5E2+-+5x\" to get \"%2B40x\".
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\n" ); document.write( "Divide the \"40x\" by \"x-3\" to get 40. Back multiply this to get \"40%2A%28x-3%29\"
\n" ); document.write( "equals \"40x+-+120\". Subtract this from \"40x+%2B+1\" by changing the signs to
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\n" ); document.write( "\"-40x+%2B+120\" and adding that to \"40x%2B1\" to get \"121\". The 121 is the remainder
\n" ); document.write( "and it can be divided by the divisor \"%28x-3%29\". This will make the answer to this division
\n" ); document.write( "problem:
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\n" ); document.write( ". \"5x%5E2+%2B+15x+%2B+40\" with a remainder of \"121%2F%28x-3%29\"
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\n" ); document.write( "Hope this helps you to understand the process of algebraic long division.
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