x^2-3x-4y^+6y(分组分解法) (x-y)^2-4(x-y-1) 2(a^2-3bc)+a(4b-3c) a^
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/09/30 11:39:02
x^2-3x-4y^+6y(分组分解法) (x-y)^2-4(x-y-1) 2(a^2-3bc)+a(4b-3c) a^4+a^2b^2+b^4
x^2-3x-4y^+6y(分组分解法)
=x²-4y²-3x+6y
=(x-2y)(x+2y)-3(x-2y)
=(x-2y)(x+2y-3)
(x-y)^2-4(x-y-1)
=(x-y)²-4(x-y)+4
=(x-y-2)²
2(a^2-3bc)+a(4b-3c)
=2a²-6bc+4ab-3ac
=2a²+4ab-6bc-3ac
=2a(a+2b)-3c(a+2b)
=(a+2b)(2a-3c)
a^4+a^2b^2+b^4
=a^4+2a²b²+b^4-a²b²
=(a²+b²)²-a²b²
=(a²+ab+b²)(a²-ab+b²)
=x²-4y²-3x+6y
=(x-2y)(x+2y)-3(x-2y)
=(x-2y)(x+2y-3)
(x-y)^2-4(x-y-1)
=(x-y)²-4(x-y)+4
=(x-y-2)²
2(a^2-3bc)+a(4b-3c)
=2a²-6bc+4ab-3ac
=2a²+4ab-6bc-3ac
=2a(a+2b)-3c(a+2b)
=(a+2b)(2a-3c)
a^4+a^2b^2+b^4
=a^4+2a²b²+b^4-a²b²
=(a²+b²)²-a²b²
=(a²+ab+b²)(a²-ab+b²)
x^2-3x-4y^+6y(分组分解法) (x-y)^2-4(x-y-1) 2(a^2-3bc)+a(4b-3c) a^
因式分解 分组分解法 x²-4y²-x-2y 1-a²-b²-2ab
x^3+3x-4,4x^2+2x-y-y^2,x^3-y^3-x^2y+xy^2.求分组分解法分解因式
因式分解 分组分解法(x+2)(x-2)-4y(x-y)
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
用十字相乘法做6m^2+10m+42x^2-4x-6用分组分解法做a^2-6ab+9b^2-1y(y+2)+4x(x-y
A.A+(4X+3Y)B.A+(4X+6Y) C.A+2(
分组分解法因式分解:(x+2y)²-2x-4y+1
(x-y)a-(x-y)用分组分解法因式分解
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
分解因式1.x^2+y^2+2x+6y+10 2.(1-y)^3+4(y-x) 3.(a-c)^2-4(a-b)(b-c
几道因式分解..4ab(a+b)^2-6a^2b(a+b)(x+y)^2(x-y)+(x+y)(x-y)^22a(a-3