Asked by Tony

One of the polynomials below cannot be factored using integers. Write “prime” for the one trinomial that does not factor and all the factors for the two that do.
a) x2– 5x + 6
b) x2+ x + 6
c) 2x2– 2x + 12
Answered by Steve
a) which two factors of 6 add to 5?
b) which two factors of 6 differ by 1?
c) which two factors of 6 add to 1?
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