Question

найдите производную f(x) =2√x+2x^2, , f(x) =(5x-1)(4x+1)
Помогите, пожалуйста

Answer 1

$1) \\ (2 \sqrt{x} ) + (2x {}^{2} ) \\ 2 \times \frac{1}{2 \sqrt{x} } + 2 \times 2x \\ \frac{1}{ \sqrt{x} } + 4x \\ (5x - 1)(4x + 1) \\ (20x {}^{2} + 5x - 4x - 1) \\ (20x {}^{2} + x - 1) \\ (20x {}^{2} ) + (x) - (1) \\ 20 \times 2x + 1 - 0 \\ 40x + 1$