document.write( "Question 1196201:
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document.write( "Suppose x is a positive number such that \"x%5E2=1-x\". There is a unique choice of whole numbers p and q so that \"x%5E8=p-qx\". Find p+q.\r\n" );
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document.write( "My attempt:\r\n" );
document.write( "I know that if \"x%5E2=1-x\", then \"x%5E8=%281-x%29%5E4\", which simplifies to \"1+-+4x+%2B+6x%5E2+-+4x%5E3+%2Bx%5E4\". Then what?\r\n" );
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Algebra.Com's Answer #829053 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Suppose x is a positive number such that \"x%5E2=1-x\". There is a unique choice of whole numbers p and q so that \"x%5E8=p-qx\". Find p+q.\r\n" );
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document.write( "My attempt:\r\n" );
document.write( "I know that if \"x%5E2=1-x\", then \"x%5E8=%281-x%29%5E4\", which simplifies to \"1+-+4x+%2B+6x%5E2+-+4x%5E3+%2Bx%5E4\". Then what?\r\n" );
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                   I got p + q = 34\r\n" );
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document.write( "                   \r\n" );
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document.write( "You already know that: \"matrix%281%2C3%2C+x%5E8%2C+%22=%22%2C+1+-+4x+%2B+6x%5E2+-+4x%5E3+%2B+x%5E4%29\"\r\n" );
document.write( "                   So,  ---- Substituting  \r\n" );
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document.write( "                          \"matrix%281%2C2%2C+%22=%22%2C+5x%5E2+-+16x+%2B+8%29\"\r\n" );
document.write( "                          \"matrix%281%2C2%2C+%22=%22%2C+5%281+-+x%29+-+16x+%2B+8%29\" ----- Substituting 1 - x for x2\r\n" );
document.write( "                          \"matrix%282%2C2%2C+%22=%22%2C+5+-+5x+-+16x+%2B+8%2C+%22=%22%2C+13+-+21x%29\"\r\n" );
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document.write( "              Finally, \"matrix%282%2C3%2C+x%5E8%2C+%22=%22%2C+13+-+21x%2C+x%5E8%2C+%22=%22%2C+p+-+qx%29\", so p = 13, and q = 21. Therefore, p + q = 13 + 21 = 34
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