f'(y) = 4 \cdot \frac{(1)(y^2) - (1 + y)(2y)}{y^4} = 4 \cdot \frac{y^2 - 2y(1 + y)}{y^4} = 4 \cdot \frac{y^2 - 2y - 2y^2}{y^4} = 4 \cdot \frac{-y^2 - 2y}{y^4} = -4 \cdot \

Mon, 04 May 2026 08:28:09 +0000

Content under review