Please I need help with this 3 questions

If f( x) + x2[f(x)]* = 18 and f(1) = 2, find f'(1). f'(1) X Enhanced Feedback Please try again using implicit differentiation. Differentiate both sides wi terms for the given value of x = a, using the given value for f(a). Then Need Help? Read It Submit Answer 9. [-/1 Points] DETAILS SCALCCC5 3.5.031. Use implicit differentiation to find an equation of the tangent line to the c y sin (12x) = x cos(2y), (1/2, It/4) y Need Help? Read It Submit Answer 10. [-/1 Points] DETAILS SCALCCC4 3.5.031. Find y" by implicit differentiation. 5x2 + 12 = 4