数学因式分解(如图)
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 23:59:46
数学因式分解(如图)
数学因式分解(如图)
数学因式分解(如图)
x^3-2x^2-x+2=(x^3-2x^2)-(x-2)
=x^2(x-2)-(x-2)
=(x^2-1)(x-2)
=(x+1)(x-1)(x-2)
(x-2)(x-1)(x+1)
x^2(x-2)-(x-2)=(x-2)(x^2-1)=(x-2)(x+1)(x-1)
数学因式分解(如图)
数学因式分解(如图)
数学因式分解(如图)
x^3-2x^2-x+2=(x^3-2x^2)-(x-2)
=x^2(x-2)-(x-2)
=(x^2-1)(x-2)
=(x+1)(x-1)(x-2)
(x-2)(x-1)(x+1)
x^2(x-2)-(x-2)=(x-2)(x^2-1)=(x-2)(x+1)(x-1)