jibeknur 1) f'(x)= 2(2x-3)*2*1=4(2x-3)
f'(1)= 4(2*1-3)= -4
2) f'(x)= 3(x+1)^2*1*1=3(x+1)
f'(1)= 3(1+1)^2= 3*2^2=12