Check my homework on negative indices! just need confirmation that i'm doing the right thing here. i got i got i got i got

Our first expression is . Upon distributing the exponent 4 on all the terms, we get:

Therefore, your answer is correct for this part. :)

Second expression is . Upon distributing the exponent -2 on all the terms, we get:

Your second answer is correct too.

Our third expression is . Upon distributing the exponent 2 on all the terms, we get:

This one is not correct. Your answer would have been correct, if the exponent were -2 instead of 2 in this part.

Our forth and last expression is . Upon distributing the exponent -5 on all the terms inside the parenthesis, we get:

Therefore, your answer for this part is also correct.

Looking at your work, I don't think you made a mistake in number 3 also, probably mis-typed the question while writing here :)

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3

step-by-step explanation: