(3х^2-9)^2

Possible forms of (3x^2 - 9)^2:

• Factored (simplified): 9 (x^2 - 3)^2
• Expanded: 9x^4 - 54x^2 + 81

If you want to see the steps: (3x^2 - 9)^2 = [3(x^2 - 3)]^2 = 9 (x^2 - 3)^2 = 9(x^4 - 6x^2 + 9) = 9x^4 - 54x^2 + 81.