Expression for the area of the window is 4x² + 6x - 4
Step-by-step explanation:
- Step 1: Given width of the window = 2x - 1. So, length = (2x-1) + 5 = 2x + 4. Find area of the window.
Area of the window = length × width
= (2x + 4) × (2x - 1)
= 4x² - 2x + 8x - 4
= 4x² + 6x - 4
