✨ Best Answer ✨ Mer over 1 yearago 根據指數律 得[(2x+3)(2x-3)]^2 再用平方差 得(4x^2 - 9)^2=16x^4 - 72x^2 + 81 青眠^ ^ over 1 yearago 謝謝🙏 Post A Comment
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