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OpenStudy (anonymous):
Can anyone plz help me? I'm trying to solve this polynomial equation: x^3-14x^2+47x-18=0
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OpenStudy (triciaal):
ok the highest power is 3 so maximum of 3 roots the constant is -18 so a factor of 18 will be one of the roots (factors of 18 are 1, 2, 3, 6, 9 and the negatives ) don't remember the easy way to do this but in either case when you have a root then (x-root) is a factor in addition when you have a root then f(root) = zero eg if 2 is a root then f(2) = 0 divide by a factor then factorize the quadratic to find the others
OpenStudy (triciaal):
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