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OpenStudy (becca9898):
What are the factors of f(x)? f(x) = x^3 + 5x^2 - x - 5
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OpenStudy (agent47):
\[f(x) = x^3+5x^2-x-5=x^2(x+5)-x-5=x^2(x+5)-(x+5)=(x+5)(x^2-1)\]
OpenStudy (agent47):
\[f(x) = x^2(x+5)-(x+5)=(x+5)(x^2-1)=(x+5)(x-1)(x+1)\]
OpenStudy (becca9898):
I don't understand..
OpenStudy (agent47):
What don't you understand?
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