document.write( "Question 984303: Let f( x)be fourth degree polynomial with coefficient of x4 is 1 such that f(-1)=-1;f(2)=-4;
\n" ); document.write( "f(-3)=-9 and f(4)=-16 than that value of f(1) is
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Algebra.Com's Answer #605089 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29=x%5E4%2Bax%5E3%2Bbx%5E2%2Bcx%2Bd\"
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\n" ); document.write( "\"f%28-1%29=1-a%2Bb-c%2Bd=-1\"
\n" ); document.write( "1.\"-a%2Bb-c%2Bd=-2\"
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\n" ); document.write( "\"f%282%29=16%2B8a%2B4b%2B2c%2Bd=-4\"
\n" ); document.write( "2.\"8a%2B4b%2B2c%2Bd=-20\"
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\n" ); document.write( "\"f%28-3%29=81-27a%2B9b-3c%2Bd=-9\"
\n" ); document.write( "3.\"-27a%2B9b-3c%2Bd=-90\"
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\n" ); document.write( "\"f%284%29=256%2B64a%2B16b%2B4c%2Bd=-16\"
\n" ); document.write( "4.\"64a%2B16b%2B4c%2Bd=-272\"
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\n" ); document.write( "Using Cramer's method,
\n" ); document.write( "\"a=-2\"
\n" ); document.write( "\"b=-14\"
\n" ); document.write( "\"c=14\"
\n" ); document.write( "\"d=24\"
\n" ); document.write( "So,
\n" ); document.write( "\"f%281%29=1%5E4-2%281%29%5E3-14%281%29%5E2%2B14%281%29%2B24\"
\n" ); document.write( "\"f%281%29=1-2-14%2B14%2B24\"
\n" ); document.write( "\"f%281%29=23\"
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