Find the square root of 4x^4 - 12x^3 + 25x^2 - 24x + 16.

  1. pm(2x^2 - 3x - 4)
  2. pm(2x^2 + 3x + 4)
  3. pm(4x^2 - 3x + 4)
  4. pm(2x^2 - 3x + 4)
Answer

D) pm(2x^2 - 3x + 4)

Expanding (2x^2 - 3x + 4)^2 gives 4x^4 - 12x^3 + 25x^2 - 24x + 16, so its square root is pm(2x^2 - 3x + 4). SLO M-09-A-20 · Understanding

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