Why does (-7) to the zero power minus 7 to the zero power equal zero when (-7) to the zero power equals -1 and 7 to the zero power equals 1... the equation would be -1-1= -2 but when i put it in a calculator it equals 0 can you please explain?
Both (-7)^0 and 7^0 =1. It is NOT true that -7^0 = -1.
Since both =1, then 1 - 1 = 0. And that is it.
The reason why your calculator evaluate -70 as -1 is because, for the calculator, it is evaluated as -(70), which is -(1) = -1.
If you wanted it to be evaluated as (-7)0, which is 1, you will need to include the parentheses.
