Draw parentheses expect draw them up and down instead of curved.
It look like this: lXl (on the computer I used lowercase L's for lines)
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|x|=√(x^2).
I would do it that way.
The expression (a+b) + (a-b) can be rewritten as a + b + a - b = 2a.There is no need to use absolute value.
The absolute value is when even if a negative number when put in absolute value signs is positive such as.. l-23 l the absolute value is 23. l..l are absolute value signs
Absolute value of 14 is 14.