There are two videos linked in chapter 5 Polynomials to explain multiplying monomials. This is multiplying monomials by polynomials.
The dimensions of a rectangular gym floor are represented by the expressions 4x and 5x - 3. What is a polynomial expression for the are of the gym floor?
Solution
You can calculate the area of a rectangle, A, by multiplying the width by the length
A = (4x)(5x - 3)
You can apply the distributive property. Multiply 4x by each term in the binomial 5x - 3
The dimensions of a rectangular gym floor are represented by the expressions 4x and 5x - 3. What is a polynomial expression for the are of the gym floor?
Solution
You can calculate the area of a rectangle, A, by multiplying the width by the length
A = (4x)(5x - 3)
You can apply the distributive property. Multiply 4x by each term in the binomial 5x - 3
A simplified expression for the area of the gym floor is 20x^2 - 12x
Here's a link to watch a video on multiplying and dividing monomials