The correct answer is d) 4x² - 4x + 1.
The area of a square is found by squaring the side length:
(2x-1)² = (2x-1)(2x-1) = 2x*2x - 2x*1 - 2x*1 - 1(-1) = 4x² - 2x - 2x + 1 = 4x²-4x+1
40 cm. Just divide the area by the length. Hope this helps!
I need to see a picture of the question so I can answer the question:)
50,70,80,100,110,130 that would be it
