flwrptls flwrptls 18-04-2020 Mathematics contestada what is the expanded form of (3x^2-2)^2? Explain. A. 9x^4 - 4 B. 9x^4 + 4 C. 9x^4 + 12x^2 - 4 D. 9x^4 - 12x^2 +4