Mathematics 4 ESO – Unit 3 POLYNOMIALS extra activities
1 – Watch the video on “What is an algebraic expression” and explain in your own words what is an algebraic expression.
2 – Watch the video on “How to Do Polynomial Operations”.
- a) When we add or subtract polynomials, what terms can we add or subtract?
- b) What are “like terms”?
- c) The sign before the term… is it part of the term?
- d) What says the “multiplication law of exponents”?
- e) What says the “division law of exponents”?
3 – Watch the video on “Operations with Polynomials”.
- a) What is the degree of the two polynomials in the example? Why?
- b) Solve: (x2 – 3x + 9) + (4x2 + 3x – 5)
- c) Solve: (x – 3y)2
- d) Solve: (x + 3y)3
