Question 118485
factor -x^4+1.5x^3+8x^2-1.5x-7
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I graphed it to find the zeroes at x = -2,-1,1,and 7/2
The factors are (x+2)(x+1)(x-1)(2x-7)
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Graph:
{{{graph(400,300,-10,10,-10,10,-x^4+1.5x^3+8x^2-1.5x-7)}}}
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Cheers,
Stan H.