Flashcards
General Roots of polynomials tips
Cards in this deck (3)
- 1What is the method of substitution?If our roots are simple / linear (e.g. 3p , 3q and 3r) then we can use y=mx+c and rearrange for x, which can then be subbed into the original polynomial. In our example of 3p , 3q and 3r we can say y=3x, and therefore x=y/3, which we then sub in.
- 2If the roots aren't linear, what method must we use?We must calculate the new sum, the product, etc and replace the coefficients in the original equation
- 3Remember that if we have the new sum to be 17/64, then -b/a for the new sum is what?-17/64