How to find the unknown constant terms in polynomials?

Now Playing:Solve polynomials with unknown c – Example 1a

Find positive and negative examples for k
1. ${x^2-5x+k}$
  
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2. ${x^2+6x+k}$

Now Practicing:Solve Polynomials With Unknown C 1a

.body-katex a { word-break: break-word; } Factorise by taking out the greatest common factorJump to:NotesPrerequisitesRelated Notes Similar to the previous section, we will be using trinomial factoring too. Just this time, we are going to look for the constant term in the polynomials instead. The trick is to reverse the process of FOIL so that we can convert the trinomials into two binomials.Prerequisites Prime factorizationMultiplying binomial by binomialRelated Factor by taking out the greatest common factorFactor by groupingFactoring difference of squares: x^2 - y^2Factoring trinomials

Solving polynomials with unknown constant terms