x的三次方+2x²-3分解因素
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 05:18:04
![x的三次方+2x²-3分解因素](/uploads/image/z/14672595-3-5.jpg?t=x%E7%9A%84%E4%B8%89%E6%AC%A1%E6%96%B9%2B2x%26%23178%3B-3%E5%88%86%E8%A7%A3%E5%9B%A0%E7%B4%A0)
x的三次方+2x²-3分解因素
x的三次方+2x²-3分解因素
x的三次方+2x²-3分解因素
原始= (x³-1)+2(x²-1)
=(x-1)(x²+x+1)+2(x+1)(x-1)
=(x-1)(x²+3x+3)
x*x*x+2*x*x-3 = x*x*x-1+2*x*x-2=(x-1)(x*x+x+1)+2(x+1)(x-1)
=(x-1)(x*x+x+1+2x+2)
=(x-1)(x*x+3x+3)