No the calc is not wrong.
It is a matter of interpretation.
Some calcs will give the answer that you want but most will say that -5^2=-25
What the calc is interpreting is
-5^2=-1×5^2=-1×25=-25
Consider 26-5^2
If the calc interpreted this the way you want the answer would be 26+25=51 which is obviously wrong.
Of course
(-5)^2 = 25
Yes. -5^2 is the same thing as -5*-5.
That means the number would be positive.
I believe closing the term with parenthesis fixes this problem on most calculators.
Yes. You are right, It is 25.
Because of the convention in the order of assessing operations, exponential expressions are evaluated before addition or subtraction. The squaring is done before the sign change.
If the term is enclosed in parentheses, then squared, the answer will be correct.
No the calc is not wrong.
It is a matter of interpretation.
Some calcs will give the answer that you want but most will say that -5^2=-25
What the calc is interpreting is
-5^2=-1×5^2=-1×25=-25
Consider 26-5^2
If the calc interpreted this the way you want the answer would be 26+25=51 which is obviously wrong.
Of course
(-5)^2 = 25