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Mathematics 7 Online
OpenStudy (anonymous):

I hate finding roots!

OpenStudy (anonymous):

What polynomial has roots of -4, 1, and 6 ? x3 - 3x2 - 22x + 24 x3 - x2 - 26x - 24 x3 + x2 - 26x + 24 x3 + 3x2 + 14x - 24

OpenStudy (anonymous):

I'd appreciate any help at all...

OpenStudy (anonymous):

simple ^.^ if a polynomial is to have a root, say, r, then it must have a factor (x-r) for example, say, I want a polynomial with roots 2 and -3, then it should be (x-2)(x+3) [note here that x+3 is the same as x - (-3)] Anyway, this is equal to x^2 + x - 6 you get the idea? great :)

OpenStudy (anonymous):

Oh, it's opposite of the factor! Okay, thank you so much!! :)) @PeterPan

OpenStudy (anonymous):

answer?

OpenStudy (anonymous):

I got x3 - 3x2 - 22x + 24! (A)

OpenStudy (anonymous):

Because the factors are (x-1) (x+4) and (x-6)

OpenStudy (anonymous):

nice ^.^

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