2. Catherine was proving that (2 + y22 - (y) = (x - y) for any x and y.
Her work is shown below.
(x2 + y)2 - (2xy) = (x2 - y)
** + 2x”y2 + y - 2x?y? = (x2 - y2)
** + y = (x + y2)
** + y* = (x2)2 + (y)
x + y = x + y
Circle Catherine's mistake(s) and justify your answer.

step-by-step explanation:

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a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

answer: x=3 and y=4

step-by-step explanation:

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step-by-step explanation: