Решение
<span>1) y = x</span>√<span>x - 9x - 2
y` = (x</span>³/² - 9x - 2)` = (3/2)x³/²⁻¹ - 9 = (3√x)/2 - 9<span>
2) y = - 2/3x</span>√<span> x + 12x - 500
y` = (-2/3x</span>³/² + 12x - 500)` = (-2/3)*(3/2)x³/²⁻¹ + 12 = - √x + 12<span>
3) y = x</span>² + 25/x
y` = (x<span>² + 25/x)` = 2x - 25/x</span>²
(2x-1)/3=(x+5)/8-(4-4x)/8
(2x-1)/3=(x+5-4+4x)/8
(2x-1)/3=(5x+1)/8
(16x-8)/24=(15x+3)/24
16x-8=15x+3
16x-15x=3+8
x=11