Asked by Sandra
how to factor 3x^3+7x^2+3x+1
Answers
Answered by
Reiny
if you let f(x) = 3x^3+7x^2+3x+1
and if we want factors with rational coefficients, the the only choices for
f(x) = 0 would be if x = ±1 or x = ± 1/3
A quick mental check would show that none of these work, so I conclude that there are no rational factors.
and if we want factors with rational coefficients, the the only choices for
f(x) = 0 would be if x = ±1 or x = ± 1/3
A quick mental check would show that none of these work, so I conclude that there are no rational factors.
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