Which expression is identical to (x - 2)^2 - 1?

  1. x^2+4x+3
  2. x^2-4x+3
  3. x^2-4x+1
  4. x^2-4x-5
Answer

B) x^2-4x+3

(x - 2)^2 - 1 = x^2 - 4x + 4 - 1 = x^2-4x+3, so LHS = RHS. SLO M-09-B-15 · Knowledge

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