因式分解【什么方法都行】我加分!【1】﹣5x²y²+10xy³-15x²y【2】2a{x-2y}-3b{2y-x}-4c{x-2y}【3】x²{x-y}-y²{y-x}【4】{x-y}²+2{x-y}w+w²【5】{p-4}{p-1}-3p

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 11:49:13
因式分解【什么方法都行】我加分!【1】﹣5x²y²+10xy³-15x²y【2】2a{x-2y}-3b{2y-x}-4c{x-2y}【3】x²{x-y}-y²{y-x}【4】{x-y}²+2{x-y}w+w²【5】{p-4}{p-1}-3p

因式分解【什么方法都行】我加分!【1】﹣5x²y²+10xy³-15x²y【2】2a{x-2y}-3b{2y-x}-4c{x-2y}【3】x²{x-y}-y²{y-x}【4】{x-y}²+2{x-y}w+w²【5】{p-4}{p-1}-3p
因式分解【什么方法都行】我加分!
【1】﹣5x²y²+10xy³-15x²y【2】2a{x-2y}-3b{2y-x}-4c{x-2y}【3】x²{x-y}-y²{y-x}【4】{x-y}²+2{x-y}w+w²【5】{p-4}{p-1}-3p

因式分解【什么方法都行】我加分!【1】﹣5x²y²+10xy³-15x²y【2】2a{x-2y}-3b{2y-x}-4c{x-2y}【3】x²{x-y}-y²{y-x}【4】{x-y}²+2{x-y}w+w²【5】{p-4}{p-1}-3p
【1】﹣5x²y²+10xy³-15x²y
=-5xy(xy-2y²+3x)
【2】2a{x-2y}-3b{2y-x}-4c{x-2y}
=2a(x-2y)+3b(x-2y)-4c(x-2y)
=(x-2y)(2a+3b-4c)
【3】x²{x-y}-y²{y-x}
=x²(x-y)+y²(x-y)
=(x-y)(x²+y²)
【4】{x-y}²+2{x-y}w+w²
=(x-y+w)²
【5】{p-4}{p-1}-3p
=p²-5p+4-3p
=p²-8p+4
=(p-4)²-12
=(p-4+2√3)(p-4-2√3)