计算,题目在下,快﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚ ﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚ ﹙3﹚﹙6a²-8a+11b³﹚-﹙11a²+2b³﹚ ﹙4﹚﹙2ab+3b²-5﹚﹣﹙3ab+3b²-8﹚
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 21:41:02
![计算,题目在下,快﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚ ﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚ ﹙3﹚﹙6a²-8a+11b³﹚-﹙11a²+2b³﹚ ﹙4﹚﹙2ab+3b²-5﹚﹣﹙3ab+3b²-8﹚](/uploads/image/z/6411789-45-9.jpg?t=%E8%AE%A1%E7%AE%97%2C%E9%A2%98%E7%9B%AE%E5%9C%A8%E4%B8%8B%2C%E5%BF%AB%EF%B9%991%EF%B9%9A%282x%26%23178%3By%2B3x%26%23178%3By%29-%EF%BC%886x%26%23178%3By-3x%26%23178%3B%EF%B9%9A+%EF%B9%992%EF%B9%9A%EF%B9%995mn-2m%2B3n%EF%B9%9A%2B%EF%B9%99-7m-7mn%EF%B9%9A+%EF%B9%993%EF%B9%9A%EF%B9%996a%26%23178%3B-8a%2B11b%26%23179%3B%EF%B9%9A-%EF%B9%9911a%26%23178%3B%2B2b%26%23179%3B%EF%B9%9A+%EF%B9%994%EF%B9%9A%EF%B9%992ab%2B3b%26%23178%3B-5%EF%B9%9A%EF%B9%A3%EF%B9%993ab%2B3b%26%23178%3B-8%EF%B9%9A)
计算,题目在下,快﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚ ﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚ ﹙3﹚﹙6a²-8a+11b³﹚-﹙11a²+2b³﹚ ﹙4﹚﹙2ab+3b²-5﹚﹣﹙3ab+3b²-8﹚
计算,题目在下,快
﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚ ﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚ ﹙3﹚﹙6a²-8a+11b³﹚-﹙11a²+2b³﹚ ﹙4﹚﹙2ab+3b²-5﹚﹣﹙3ab+3b²-8﹚
计算,题目在下,快﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚ ﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚ ﹙3﹚﹙6a²-8a+11b³﹚-﹙11a²+2b³﹚ ﹙4﹚﹙2ab+3b²-5﹚﹣﹙3ab+3b²-8﹚
﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚
=2x²y+3x²y-6x²y+3x²
=-x²y+3x²
﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚
=5mn-2m+3n-7m-7mn
=-2mn-9m+3n
﹙3﹚﹙6a²-8a+11b³﹚-﹙11a²+2b³﹚
=6a²-8a+11b³-11a²-2b³
=-5a²-8a+9b³
﹙4﹚﹙2ab+3b²-5﹚﹣﹙3ab+3b²-8﹚
=2ab+3b²-5-3ab-3b²+8
=-ab+3