tentukan turunan fungsi berikut

a. y=3-x²/2x-3
mis: U=3-x². U'=-2x
V=2x-3. V'=2
f'(x)= U'V-UV'/V²
= -2x(2x-3)-(3-x²)2/(2x-3)²
=(-4x²+6x)-(6-2x²)/(4x²-12x+9)
=(-2x²+6x-6)/(4x²-12x+9)
b. y=-4x/3x+4
mis: U=-4x. U'=-4
V=3x+4. V'=3
f'(x)=U'V-UV'/V²
=-4(3x+4)-(-4x)3/(3x+4)²
=(-12x-16)-(-12x)/(9x²+24x+16)
=-16/9x²+24x+16.