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OpenStudy (anonymous):
find a degree 3 polynomial with zeros -2, 1, 5 and go through point (0, -3)
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OpenStudy (saifoo.khan):
Did u tried that?
OpenStudy (anonymous):
yeah help
OpenStudy (anonymous):
x^3-4x^2-7x+10
OpenStudy (anonymous):
how did you figure that out
OpenStudy (anonymous):
Well, since -2,1,5 are zeros. Then they must be... x+2=0 x-1=0 x-5=0 Since all those would equal to 0. Then you just multiply the three. (x+2)(x-1)(x-5). And you get the answer.
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