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(-10) X 2 - (-7)^2

less than a minute read Jun 16, 2024
(-10) X 2 - (-7)^2

Solving the Expression (-10) x 2 - (-7)^2

This article will guide you through solving the expression (-10) x 2 - (-7)^2. We'll break down each step and explain the order of operations.

Order of Operations: PEMDAS/BODMAS

To correctly solve mathematical expressions, we need to follow the order of operations. This is often remembered by the acronyms PEMDAS or BODMAS:

  • Parentheses (or Brackets)
  • Exponents (or Orders)
  • Multiplication and Division (from left to right)
  • Addition and Subtraction (from left to right)

Step-by-Step Solution

  1. Exponents: First, we calculate (-7)^2 which is (-7) * (-7) = 49.
  2. Multiplication: Next, we perform the multiplication (-10) x 2 = -20.
  3. Subtraction: Finally, we subtract 49 from -20: -20 - 49 = -69.

Conclusion

Therefore, the solution to the expression (-10) x 2 - (-7)^2 is -69.

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