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OpenStudy (anonymous):
what isthe x in x^3-75x-182=0
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OpenStudy (dumbcow):
x is the independent variable, its an unknown number or the input into a function
OpenStudy (dumbcow):
oh wait you mean solve for x
OpenStudy (anonymous):
yes sir
OpenStudy (dumbcow):
you have to try to factor out some (x-c) where c is factor of 182 then it will leave a quadratic which is more easily solved. try (x +-1), (x+-2),(x+-7) and see if any of those factor out evenly, if none do then you have to try other numerical methods like newton's method for finding zeroes. Additionally, if you have a graphing calculator or software to graph the function this should give you an idea of where the zeroes are
OpenStudy (dumbcow):
x+7 does work
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