y=(x2−4x+1)5
y″=20(x2−4x+1)3(2x−4)2+40(x2−4x+1)4
Step 1 :y=(x2−4x+1)5
Step 2 :y′=5(x2−4x+1)4(2x−4)
Step 3 :y″=20(x2−4x+1)3(2x−4)2+40(x2−4x+1)4