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Mathematics 21 Online
OpenStudy (anonymous):

which of the following represents the zeros of f(x)=x^3-2x^2-6x+12? answer choices are: a) -2, -sqrt 6, -sqrt 6 b) 2, sqrt 6, -sqrt 6 (definitely not the answer. I chose this one last time and it was wrong) c) 2, sqrt 6, -sqrt 6 d) -2, sqrt 6, sqrt 6

OpenStudy (onepieceftw):

Substitute those values into the equation and find the one that makes the equation = 0

OpenStudy (anonymous):

b has a typo, they should both be -sqrt 6

OpenStudy (anonymous):

I know how to do it, well I know the basic directions but every time I do it none of them come out as 0 so I'm doing something wrong

OpenStudy (anonymous):

thanks though @OnePieceFTW

OpenStudy (anonymous):

For which operations is the set {–1, 1} closed? Choose all answers that are correct. A. addition B. subtraction C. multiplication D. division

OpenStudy (anonymous):

@hogiiboo12 I'm really trying to get someone to help with MY question so please post your own

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