Which expression is identical to (x - 4)^2 + 7?

  1. x^2+8x+23
  2. x^2-8x+23
  3. x^2-8x+11
  4. x^2-8x-9
Answer

B) x^2-8x+23

(x - 4)^2 + 7 = x^2 - 8x + 16 + 7 = x^2-8x+23, so LHS = RHS. SLO M-09-B-15 · Knowledge

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