Consider the function f left parenthesis x right parenthesis equals 3 x squared minus 5 x minus 2f(x)=3x2−5x−2 and complete parts (a) through (c). (a) find f left parenthesis a plus h right parenthesisf(a+h); (b) find startfraction f left parenthesis a plus h right parenthesis minus f left parenthesis a right parenthesis over h endfraction f(a+h)−f(a) h; (c) find the instantaneous rate of change of f when aequals=44. (a) f left parenthesis a plus h right parenthesisf(a+h)equals= nothing (simplify your answer. do not factor.)