ORDER OF OPERATIONS: Example 2

Example 2: Calculate
.
Answer: The answer is 0.
Simply them first.
=
and
=
The problem
can now be written
.
Simplify the parenthesis
next:
=
.
The problem can further be simplified from
to
.
Simplify the parenthesis
next:
=
.
The problem can now be simplified from
to
= 0.

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Author: Nancy Marcus