## Lesson goal: Polynomials multiplied by a monomial

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In the last lesson, you saw how the algebra function knows how to crunch algebraic symbols (x, y, z, etc.) for you, in figuring out exponents.

Let's use this more now to multiply a polynomial by a monomial, and practice the distributive property of multiplication. This means doing problems like $-x(x^2-4)$ or $-5u(u^2+4)$.