Math Problem Statement

-4^2

Solution

The expression 42-4^2 can be interpreted in two different ways depending on the use of parentheses, which influences the order of operations:

  1. Without parentheses: 42-4^2

    • In this case, the exponentiation takes precedence over the negative sign. Therefore, you first calculate 42=164^2 = 16, and then apply the negative sign: 16-16.
  2. With parentheses: (4)2(-4)^2

    • If the expression were written with parentheses as (4)2(-4)^2, the negative sign would be included inside the exponentiation. This would result in: (4)×(4)=16(-4) \times (-4) = 16.

Since there are no parentheses, the correct interpretation for 42-4^2 is 16-16.

Do you want more details or have any questions?

Here are 5 related questions:

  1. What is the value of (3)2(-3)^2?
  2. How would you simplify 5325 - 3^2?
  3. What is the difference between 23-2^3 and (2)3(-2)^3?
  4. How do parentheses affect the order of operations in mathematical expressions?
  5. How do you evaluate expressions with multiple exponents and negative numbers?

Tip: Always remember the order of operations (PEMDAS/BODMAS) to correctly evaluate expressions.

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Math Problem Analysis

Mathematical Concepts

Order of Operations
Exponentiation
Negative Numbers

Formulas

-

Theorems

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Suitable Grade Level

Grades 5-6