3x 4x2-5x2 7x4=02x-3x 3(4)1x 11x2-13x3 16x4=07x-2x, x. 3x1=0 3x 4x2-5x2 7x4=02x-3x 3(4)1x 11x2-13x3 16x4=07x-2x, x. 3x1=0 发布时间:2025-09-28 19:41:18