15. Consider this formula: G = (A^3 + B) x 4 - C^2

a. Show the order that a single processor would follow to calculate G following the standard order of operations. To do so, break down the equation into the correct order of operations, with one calculation per step. Show the formula for each step, assigning new letters to your calculations as necessary.

b. Find the value of G: if A = 3, B = 4, and C = 5