⇒ Question:

Find the dimensions of the bean's field if the area is 16x² - 88x + 121 square feet.​

⇒ Answer:

16x² - 88x + 121

4²x² - 88x + 121

4²x² - 2 × 4x × 11 + 121

4²x² - 2 × 4x × 11 + 11²

(4x)² - 2 × 4x × 11 + 11²

(4x - 11)²

The dimensions of the bean's field if the area is: (4x - 11)²