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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
Algebra 1 (Eureka Math/EngageNY)
Module 1: Relationships between quantities and reasoning with equations and their graphs
Topic B: Lesson 8: Adding and subtracting polynomials with 2 variables
Subtracting polynomials: two variables
Subtracting polynomials: two variables
Sal subtracts -6x⁴-3x²y²+5y⁴ from 2x⁴-8x²y²-y⁴.
License: CC BY-NC-SA by Khan Academy