Congratulations, you're all right for the wrong question: (-2)^2 = 4 indeed but,
Being completely pedantic about your syntax: -2^2 is the same as -1 * 2^2, this is how any calculator will read it and how you have presented it to us. So B is the correct answer
Being completely pedantic about your syntax: -2^2 is the same as -1 * 2^2, this is how any calculator will read it and how you have presented it to us. So B is the correct answer
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If you meant 2^2 + (-2)^2, then the result is 8.
2^2 = 4
(-2)^2 = 4
4 + 4 = 8
However, I must point out that the way you've written it - 2²+(-2²) - then the result is zero.
I wrote 2^2 + (-2)^2. However, you wrote 2^2 + (-2^2), which is different.
You perform the exponentiation first. This then becomes 4 + (-4), and you then do the addition which then becomes zero.
2^2 = 4
(-2)^2 = 4
4 + 4 = 8
However, I must point out that the way you've written it - 2²+(-2²) - then the result is zero.
I wrote 2^2 + (-2)^2. However, you wrote 2^2 + (-2^2), which is different.
You perform the exponentiation first. This then becomes 4 + (-4), and you then do the addition which then becomes zero.
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my friend!!!
(-2 )² = 4 but (-2 ²) = -4 because exponentiation is done before subtraction
let me prove to you
(-2 ²) = -(2 ²) = -4
so 2 ² + (-2 ²) = 4 + (-4) = 0, not 8
(-2 )² = 4 but (-2 ²) = -4 because exponentiation is done before subtraction
let me prove to you
(-2 ²) = -(2 ²) = -4
so 2 ² + (-2 ²) = 4 + (-4) = 0, not 8
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It makes 8.
A negative multiplied by a negative is a positive.
A negative multiplied by a negative is a positive.