SOLUTION: What is the value of 2x to the 2nd power minus z to the 2nd power?

Algebra ->  Exponents -> SOLUTION: What is the value of 2x to the 2nd power minus z to the 2nd power?      Log On


   

Question 783229: What is the value of 2x to the 2nd power minus z to the 2nd power?
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
You described an expression and asked for the value of it. You need the variable assignments or you have no value for the expression. %282x%29%5E2-z%5E2 is an expression only.

If you had x=12 and z=8, then substitute these values for them and evaluate.
%282%2A12%29%5E2-8%5E2 which you can simplify.