We need to create a Mathematica script named "greatestval" that finds the greatest value of n E N such that 5n3 + 6n2 + 4 S x, for a given value of x. 1) Which one of the following commands is correct at the beginning of the program: a) greatestval(x): b) greatestval[x]:= c) greatestval[x_]= d) greatestval(x):= a) b) c) Question 1- Part2 * 7 points 2) The greatest value of n such that 5n3 + 6n2 +4 5 600 will be