How do you solve this?

The yearly demand function for Penn State Bakery cookie trays is given by x2 + 4p2+ 3x + 8p = 226 where p is the wholesale unit price in dollars and x is the quantity demanded each year, measured in units of a thousand. (a) Compute the price, p, when x = 10. Price, p = dollars X (b) Use implicit differentiation to compute the rate of change of demand with respect to price, p, when x = 10. Do not round your answer. Rate of change of demand, x' = thousands of units per dollar X (c) Compute the elasticity of demand when x = 10. Do not round your answer. Elasticity of Demand = X