document.write( "Question 118487This question is from textbook Mcdougal Littell Algebra 2
\n" ); document.write( ": how do i find the x- intercepts of -x^4+1.5x^3+8x^2-1.5x-7? \n" ); document.write( "
Algebra.Com's Answer #86605 by stanbon(75887)\"\" \"About 
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how do i find the x- intercepts of -x^4+1.5x^3+8x^2-1.5x-7?
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\n" ); document.write( "The coefficients add to zero so x=1 is a zero;
\n" ); document.write( "1)....-1....1.5....8....-1.5...-7
\n" ); document.write( ".......-1.....0.5...8.5....7...|..0\r
\n" ); document.write( "\n" ); document.write( "Quotient: -x^3+0.5x^2+8.5x+7
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\n" ); document.write( "x=-1 is a zero
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\n" ); document.write( "-1....-1....0.5....8.5....7....1
\n" ); document.write( "........-1... 1.5....7...|..0\r
\n" ); document.write( "\n" ); document.write( "Quotient: -x^2+1.5x+7
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\n" ); document.write( "x=-2 is a zero
\n" ); document.write( "-2)....-1....1.5....7
\n" ); document.write( ".........-1...3.5..|..0\r
\n" ); document.write( "\n" ); document.write( "Quotient: -x+3.5
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\n" ); document.write( "Since -x+3.5 = 0 , the final zero is 3/5 or 7/2
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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