document.write( "Question 952383: What are all the zeros of f(x)=x^3-x^2-7 x+3 \n" ); document.write( "
Algebra.Com's Answer #581612 by lwsshak3(11628)\"\" \"About 
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What are all the zeros of f(x)=x^3-x^2-7 x+3
\n" ); document.write( "use the rational roots theorem with synthetic division:\r
\n" ); document.write( "\n" ); document.write( "...0...|.....1......-1.....-7.......3
\n" ); document.write( "...1...|.....1.......0.....-7......-4(real root between 0 and 1)(change in sign of last number)
\n" ); document.write( "...2...|.....1.......1.....-5......-7
\n" ); document.write( "...3...|.....1.......2.....-1.......0 (3 is a root)
\n" ); document.write( "f(x)=(x-3)(x^2+2x-1)
\n" ); document.write( "zeros are 3 plus two irrational roots
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