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Simplifying 72−2[4(5+1)]7^2 - 2[4(5 + 1)]

To simplify the expression 72−2[4(5+1)]7^2 - 2[4(5 + 1)], apply the order of operations, starting with the most deeply nested grouping symbols:

  1. Innermost Parentheses: Add inside the parentheses (5+1)=6(5 + 1) = 6, resulting in 72−2[4(6)]7^2 - 2[4(6)].
  2. Inside Brackets: Multiply 4(6)=244(6) = 24, giving 72−2[24]7^2 - 2[24].
  3. Exponents: Evaluate the power 72=497^2 = 49, yielding 49−2[24]49 - 2[24].
  4. Multiplication: Multiply 2[24]=482[24] = 48, which gives 49−4849 - 48.
  5. Subtraction: Subtract the final values to obtain the answer: 11.

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Updated 2026-06-05

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