\"\"

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The expression is \"\"

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\"\"     (Replace y, z with 4, 12)

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To simplify the expression following order of operations to performed:

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1.   Evaluate the expressions inside grouping symbols.

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2.   Evaluate Powers.

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3.   Multiply and/or Divide in order from left to right.

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4.   Add and/or Subtract in order from left to right. \"\"

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According order of operations inside the grouping symbols should be evaluated first.

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First operation is evaluating expression within the parentheses.

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\"\"          (Multiply: \"\")

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Next operation is multiplication

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\"\"              (Multiply: \"\")

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Next operation is subtraction

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\"\"                          (Subtract: \"\")

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Next operation is multiplication

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\"\"                              (Multiply: \"\" )

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Next operation is addition

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\"\"                                       (Add: \"\" )                                                

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\"\"

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The value of the expression is 36.

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