mnta tolong di jawab ya a.y= (x⁴ + 2x )(x³ + 2x²+1)

jawab
4.
y = (x⁴ + 2x)(x³ + 2x² +1) = 
y = x⁷ + 2x⁶ + 6x⁴ + 4x³ + 2x
y' = 7x⁶ + 12x⁵ + 24x³ + 2

9.

y =  (2x - 1)/(x - 1)
u = 2x -1, u'  =2
v = x - 1 , v' = 1

y = u/v → y' = (u' v - uv')/(v²)

y' =  2(x -1) - 1(2x-1) / (x-1)²
y' = ( 2x - 2 - 2x + 1) / ( x- 1)²
y' = -1/( x -1)²