# Doodles Do Algebra – Lesson 61

Update: This Lesson Is Part of Book 3 of Doodles Do Algebra: “The Basic Math of Algebra” available on Amazon.

Worksheet:

Available in the book, “The Basic Math of Algebra, Book 3 of Doodles Do Algebra“

This is the last day of practice with basic polynomial multiplication.

1. $9a^2-25b^2$
2. $6a^4-6ax^3$