SOLUTION: -3xyz(squared) x=-4 y=-2 z=1\2 okay when i put this equation in my TI calculator i got 144 but when my teacher checked it he said it was wrong can you show me how to solve this

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: -3xyz(squared) x=-4 y=-2 z=1\2 okay when i put this equation in my TI calculator i got 144 but when my teacher checked it he said it was wrong can you show me how to solve this      Log On


   

Question 208611: -3xyz(squared)
x=-4 y=-2 z=1\2
okay when i put this equation in my TI calculator i got 144 but when my teacher checked it he said it was wrong can you show me how to solve this problem? and what the correct answer would be PLEASE??????
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
-3xyz(squared)
x=-4 y=-2 z=1\2
.
-3xyz%5E2
Plugging in the given values:
x=-4 y=-2 z=1\2
.
-3%28-4%29%28-2%29%281%2F2%29%5E2
order of operations (PEMDAS) says we deal with exponents first:
-3%28-4%29%28-2%29%281%2F4%29
Next, multiplication right to left:
%2812%29%28-2%29%281%2F4%29
%28-24%29%281%2F4%29
-6