Whats wrong with my TI-84 calculator?

How do you type this into a TI84 calculator?

• 58078 - 11(72.54545)^2 divided by 11-1. The answer is supposed to be 18.67273, but I keep getting a different answer because my calculator is not formating the equation correctly. I ...show more

• Answer:

  Try this: Put the value 58078, just subtract that with 11(72.54545)^2. Then just use that answer and divide it by (11-1). The parenthesis are important here. You should get the intended answer. It worked for me. Basically, take individual steps for each part of the problem, so you can see what you're doing instead of having to scroll left and right constantly.