Answer:
B. She made the first error in step 2 because step 2 should be
.
Explanation:
We have been given an image that shown Kadesha's work for simplifying the expression
. We are asked to find Kadesha's 1st error.
Let us solve our given expression using distributive property
.


Upon looking at Kadesha's work, we can see that she has not correctly used distributive property as product of two negatives is always positive.
Therefore, Kadesha made her first error in step 2 and option B is the correct choice.