Answer :
Final answer:
To find the length of the missing side, factor the expression for the area of the rectangle as (x² - 5)(3x³ + 9x² + 15x + 9), with the length represented by the factor (x² - 5).
Explanation:
To find the length of the missing side, we need to factor the expression for the area of the rectangle. By factoring out the common factors, we can rewrite the expression as (x² - 5)(3x³ + 9x² + 15x + 9). From this, we can see that one of the factors represents the length of the rectangle.
The length of the missing side is represented by the factor (x² - 5).
Learn more about Factoring here:
https://brainly.com/question/33624529
#SPJ11
