Identify common factors: Identify common factors in each term.We look for any common factors in all terms of the polynomial 3x3−6x2+8x−16.The common factor here is 1, as there are no other common factors that divide all terms.
Group terms to factor: Group terms to factor by grouping.We can try to group the terms in pairs to see if we can factor by grouping.Group the terms as follows: (3x3−6x2)+(8x−16).
Factor out greatest common factor: Factor out the greatest common factor from each group.From the first group 3x3−6x2, we can factor out 3x2, giving us 3x2(x−2).From the second group 8x−16, we can factor out 8, giving us 8(x−2).Now we have 3x2(x−2)+8(x−2).
Factor out common binomial factor: Factor out the common binomial factor.We notice that (x−2) is a common factor in both terms.Factor out (x−2) to get (x−2)(3x2+8).
Check for further factorization: Check if the remaining quadratic can be factored further.The quadratic 3x2+8 does not have real roots and cannot be factored further over the real numbers.