This video explains how to determine which coin out of 6 identical coins is light using only 2 weighings on a balance scale.
This video proves the derivative of a constant times a function equals the constant time the derivative of f(x).
This video provides several examples of how to multiply polynomials.
This video explains how to simplify algebraic expressions.
This video defines the distributive property and provides several examples of how to multiply using the distributive property.
This video explains how to multiply fractions and mixed numbers.
This video provides example on how to subtract and multiply complex numbers.