Given a = 1, B = 2, find the value of the algebraic formula 5ab-9 / 2a to the third power × B to the second power - 9 / 4AB + 1 / 2a to the cube × B to the square - 11 / 4ab-a ^ 3 times B-5

Given a = 1, B = 2, find the value of the algebraic formula 5ab-9 / 2a to the third power × B to the second power - 9 / 4AB + 1 / 2a to the cube × B to the square - 11 / 4ab-a ^ 3 times B-5

The original formula = - 4A & sup3; B & sup2; - A & sup3; B-5
=-4×1×4-1×2-5
=-16-2-5
=-23