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Mathematics 7 Online
OpenStudy (anonymous):

Given that f(x) = x3- x2 + 2x, what is f(-3) answers -42, 12, -24 or 30

OpenStudy (anonymous):

so sub in -3 for x and calculate u should get the answer

OpenStudy (anonymous):

is it -24

OpenStudy (anonymous):

assuming that x3 and x2 is x^3 and x^2 then the answer is -42

OpenStudy (anonymous):

im so lost with some of this stuff

OpenStudy (anonymous):

what are u lost with? which part

OpenStudy (anonymous):

you said let x = -3 correct

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

so if u were to plug it into you calc. the it should be (-3)^3-(-3)^2=2*-3

OpenStudy (anonymous):

sorry + sign

OpenStudy (anonymous):

^ sign is messing me up how do you do it on a calculator , I'm really sorry if i seem dumb as rocks

OpenStudy (anonymous):

nah it fine that is just the symbol for power there should be a button that looks like it or like\[x^{y}\]

OpenStudy (anonymous):

this math is so stressful

OpenStudy (anonymous):

u may have to figure out your calc. and give it another try

OpenStudy (anonymous):

well i only have 10 questions could you help with some others

OpenStudy (anonymous):

k, but please type them as they show in your book use the equations buttion on this web site. it will make it easier for me to understand the question

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