计算:①m³n²-mˆ5n²②ax²-4a²x+4a³③-a³+2a²b-ab²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 01:01:39
![计算:①m³n²-mˆ5n²②ax²-4a²x+4a³③-a³+2a²b-ab²](/uploads/image/z/5246953-25-3.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%E2%91%A0m%26%23179%3Bn%26%23178%3B-m%26%23710%3B5n%26%23178%3B%E2%91%A1ax%26%23178%3B-4a%26%23178%3Bx%2B4a%26%23179%3B%E2%91%A2-a%26%23179%3B%2B2a%26%23178%3Bb-ab%26%23178%3B)
计算:①m³n²-mˆ5n²②ax²-4a²x+4a³③-a³+2a²b-ab²
计算:①m³n²-mˆ5n²
②ax²-4a²x+4a³
③-a³+2a²b-ab²
计算:①m³n²-mˆ5n²②ax²-4a²x+4a³③-a³+2a²b-ab²
m³n²-m^5n²
=m³n²(1-m²)
=m³n²(1+m)(1-m)
ax²-4a²x+4a³
=a(x²-4ax+4a²)
=a(x-2a)²
-a³+2a²b-ab²
=-a(a²-2ab+b²)
=-a(a-b)²