173k views
2 votes
The area of a rectangle is 4w - 10 square units.

A.Factor this expression.
B. Given your answer in part A, describe what you can conclude about the dimensions of the rectangle in two or more complete sentences.

User Mmohammad
by
7.4k points

1 Answer

6 votes

The given expression is 4w - 10, which represents the area of a rectangle. To factor this expression, we need to find two numbers whose product is equal to 4w - 10 and whose sum is equal to the coefficient of the linear term, which is 4w.

Let's consider the expression 4w - 10. To factor it, we need to find two numbers that multiply to give us -10 and add up to give us 4. In this case, the numbers are 5 and -2 because 5 * (-2) = -10 and 5 + (-2) = 4.

So, we can factor the expression 4w - 10 as (4w + 5)(w - 2).

Now, let's interpret what this factored expression tells us about the dimensions of the rectangle.

The factored expression (4w + 5)(w - 2) indicates that the rectangle has two dimensions: 4w + 5 and w - 2.

The dimension 4w + 5 represents the length of the rectangle, while the dimension w - 2 represents the width of the rectangle.

This means that the length of the rectangle is 4w + 5 units, and the width of the rectangle is w - 2 units.

Therefore, we can conclude that the dimensions of the rectangle are given by (4w + 5) units for the length and (w - 2) units for the width.

User Jurosh
by
7.9k points