In factoring a trinomial with a leading coefficient other than 1, the first step is to look for a factor in each term and factor it out.
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In factoring a trinomial with a leading coefficient other than one, the first step is to look for a greateast common factory or GCF in each term and factor it out but do not forget to check whether the trinomial is written in the correct descending order, that is from the highest to the lowest order. Upon finding the GCF, make sure to include it in the final answer using its simplified form. Multiply the coefficient and the constant, take the factors from the previous step and decide which combination to use to get the number next to x. After having the right pairs, make sure to indicate the correct symbol and factor by grouping.

Yes, two vertical lines can be complementary