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How to factor a trinomial with a degree of 3

User Otusweb
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Answer:

Explanation:

It all depends upon what the terms are. If each term of the 3 all have a variable you can factor out, then you'd do that first. For example, if your trinomial looks like this:


x^3+3x^2+4x

you would begin by factoring out the common x, reducing the third degree polynomial to a quadratic which can then be factored many ways.


x^3+3x^2+4x=x(x^2+3x+4)

If that is not the case, then you are factoring higher degree polynomials, and the way I always recommend to my students is the Rational Root Theorem and then synthetic division.

User Delliottg
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