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521

Q:

A complete factorization of x4+64 is 

  • 1
    $$\left(x^2+8 \right)^2 \ $$
  • 2
    $$\left(x^2+8 \right) \ (x^2-8)$$
  • 3
    $$\left(x^2-4x+8 \right) \ (x^2-4x-8)$$
  • 4
    $$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$
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  • Workspace

Answer : 4. "$$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$"

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