Simplify the left-hand side to complete the proof: (2x + 3)^2 - 12x equiv

  1. 4x^2 - 9
  2. 4x^2 + 24x + 9
  3. 4x^2 + 9
  4. 2x^2 + 9
Answer

C) 4x^2 + 9

Expanding and collecting like terms gives (2x + 3)^2 - 12x = 4x^2 + 9. SLO M-09-B-15 · Knowledge

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