volume_mute

Grouping Symbols – Parentheses Inside

publish date: 2026/05/07 22:17:46.489631 UTC

volume_mute

Evaluate: \(-15 + 3(-4 + 7 \cdot 2)\)

Correct Answer

\(15\)

Explanation

  1. Inside parentheses — multiply first: \(7 \cdot 2 = 14\)
  2. Inside parentheses — add: \(-4 + 14 = 10\)
  3. Multiply outside: \(3(10) = 30\)
  4. Add: \(-15 + 30 = 15\)

Reference

Mathematics for college students

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