Really stuck on the last 2 questions on my worksheet. Due in two hours could really use some help. Thanks!

8. Find and classify the critical points of f(x, y) = 8xy - 2x2 - =y3 + 96y + 7. (14 points) 9. Use Lagrange Multipliers to find the minimum value of f(x, y, z) = 6x2 + 932 + 3z when we consider only th points on 6x2 + 22 + 30y = 1050. (12 points)