The fields below accept a list of numbers or formulas separated by semicolons (e. g. 2; 4; 6 or x+1; x−1.) the order of the list does not matter. enclose arguments of functions, numerators, and denominators in parentheses. for example, sin(2x) or (a−b)/(1+n).

(a) find all the x-values of the critical points and inflection points of the function f(x)=x4−2ax2+b. assume a and b are positive constants. critical points: inflection points:
(b) find values of the parameters a and b if f has a critical point at the point (4,7). enter the equation for f(x). f(x)=