SME
Grade 9 Math

Adding, subtracting and multiplying polynomials

The main lesson, then each kind of problem it solves.

Adding, subtracting and multiplying polynomials

Main lesson
Add and subtract polynomials
Use this for “(3x² − 2x + 5) − (x² + 4x − 1)”.
Square a binomial
Use this for “(3x − 2)²”.
Binomial times trinomial: the area box
Use this for “Multiply (x + 2)(x² − 3x + 4).”
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