因式分解:1.2a²-8b²= 2.2m³-8m 3.3a²-12ab+12b²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 09:36:09
![因式分解:1.2a²-8b²= 2.2m³-8m 3.3a²-12ab+12b²](/uploads/image/z/387719-71-9.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%9A1.2a%26%23178%3B-8b%26%23178%3B%3D+2.2m%26%23179%3B-8m+3.3a%26%23178%3B-12ab%2B12b%26%23178%3B)
因式分解:1.2a²-8b²= 2.2m³-8m 3.3a²-12ab+12b²
因式分解:1.2a²-8b²= 2.2m³-8m 3.3a²-12ab+12b²
因式分解:1.2a²-8b²= 2.2m³-8m 3.3a²-12ab+12b²
2a²-8b²
=2(a^2-4b^2)
=2(a+2b)(a-2b)
2m³-8m
=2m(m^2-4)
=2m(m+2)(m-2)
3a²-12ab+12b²
=3(a^2-4ab+4b^2)
=2(a-2b)^2
1.2a²-8b²
=2(a²-4b²)
=2(a+2b)(a-2b)
2.2m³-8m
=2m(m²-4)
=2m(m+2)(m-2)
3.3a²-12ab+12b²
=3(a²-4ab+4b²)
=3(a-2b)²