因式分解4x^4 6x^2y-9x^2 9y^4-搜答案-智慧作业帮

=(3x)^2-(y+2)^2=(3x+y+2)(3x-y-2)

x^2-2x-4y^2-4y=(x^2-4y^2)-(2x+4y)=(x+2y)(x-2y)-2(x+2y)=(x+2y)(x-2y-2)

4x^3-4x^2y-(x-y)=4x^2(x-y)-(x-y)=(x-y)(4x^2-1)=(x-y)(2x-1)(2x+1)

4x^3-4x^2y-(x-y)=4x²(x-y)-(x-y)=(x-y)（4x²-1）=(x-y)(2x+1)(2x-1)再问：a^3+1/81(b^3)x(x+4)+4x的绝对

x(x-y)+4(y-x)=x(x-y)-4(x-y)=(x-y)(x-4)=(x-y)(X+2)(X-2)

利用平方差公式：a²-b²=(a+b)(a-b)4(x+y)²-9(x-y)²=[2(x+y)]²-[3(x-y)]²=[2(x+y)+3(

4x^2-9y^2=(2x+3y)(2x-3y)

4-12(x-y)+9(x-y)²=[2－3﹙x－y﹚]²=﹙2－3x＋3y﹚²再问：那个小的2是怎么弄的再答：二次方，就是平方

4a^2(x-y)+9(y-x)=4a^2(x-y)-9(x-y)=(x-y)(4a^2-9)=(x-y)(2a+3)(2a-3)-4x^2y^2+x^3y+4xy^3=xy(x^2-4xy+4y^2

4x·x+1÷4-9y·y-2x=4x²-2x+1/4-9y²=(2x-1/2)²-9y²=(2x-1/2+3y)(2x-1/2-3y)

9(x-y)^2-(x+y)^2=[3(x-y)]^2-(x+y)^2=[3(x-y)+(x+y)]*[3(x-y)-(x+y)]=4(2x-y)(x-2y)

4（x-y+1)+y(y-2x)=4x-4y+4+y^2-2xy=(y^2-4y+4)-2x(2-y)=(y-2)^2+2x(y-2)=(y-2)(2x+y-2)

1:(x^2-9y^2)-(x+3y)=（x+3y）（x-3y）-(x+3y)=(x+3y)(x-3y-1)提取公因式2：(a-b)^4-(b-a)^2=(a-b)^4-(a-b)^2=(a-b)^2

原式=(2x+3y)(2x-3y)再问：.再答：这是平方差

4x(y-x)-y^2因式分解

4x(y-x)-y²=4xy-4x²-y²=-(4x²-4xy+y²)=-(2x-y)²很高兴为您解答,【the1990】团队为您答题.请点

(x+y)(x+y-6)+9=(x+y)^2-6(x+y)+9=((x+y)-3)^2=(x+y-3)^2x²-16y²-x-4y=(x+4y)(x-4y)-(x+4y)=(x+4

x^2y-4y因式分解

x^2y-4y=y(x^2-4)=y(x^2-2^2)=y(x+2)(x-2)如果帮到你,请记得采纳,O(∩_∩)O谢谢

16(x-y)^2-9(x+y)^2=(4x-4y)²-(3x+3y)²=(4x-4y+3x+3y)(4x-4y-3x-3y)=(7x-y)(x-7y)

4(x-y)^2-9(x+y)^2=[2(x-y)]^2-[3(x+y)]^2=(2x-2y)^2-(3x+3y)^2=(2x-2y+3x+3y)(2x-2y-3x-3y)=-(5x+y)(x+5y)