Update: This Lesson Is Part of Book 3 of Doodles Do Algebra: “The Basic Math of Algebra” available on Amazon.
Available in the book, “The Basic Math of Algebra, Book 3 of Doodles Do Algebra“
Today is the last day of polynomial multiplication, and then it is off to algebraic division.
You can brute-force this problem, but it is easier to multiply the by first and then multiply the final two resulting polynomials. This is something you can show your child after she works the problem through, or you can work it together as a group problem.