2x(x-5)=?, 2x2-5x, 2x2-5, 2x2-10, 2x2-10x, (x-5)(x+3)=?, x2-2x-15, x2+2x-15, x2+8x-15, x2-8x-15, (4x+5)(2x2-x)=?, 8x3-4x2-5x, 8x3+6x2-5x, 8x3+10x2-5x.

2上1-3_多項式的乘法運算

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?