(1)x^4-x^2 (2)a(x^2-y^2)+b(y^2-x^2) (3)-27x^4+18x^3-3x^2 (4)
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/19 18:03:58
(1)x^4-x^2 (2)a(x^2-y^2)+b(y^2-x^2) (3)-27x^4+18x^3-3x^2 (4)x^4-1 (5)a^4-2a^b^2+b^4
(6)(a^2-a)^2-(a-1)^2
(6)(a^2-a)^2-(a-1)^2
(1)x^4-x^2
=x^2(x^2-1)
=x^2(x+1)(x-1)
(2)a(x^2-y^2)+b(y^2-x^2)
=(x^2-y^2)(a-b)
=(x+y)(x-y)(a-b)
(3)-27x^4+18x^3-3x^2
=-3x^2(9x^2-6x+1)
=-3x^2(3x-1)^2
(4)x^4-1
=(x^2+1)(x^2-1)
=(x^2+1)(x+1)(x-1)
(5)a^4-2a^b^2+b^4
=(a^2-b^2)^2
=(a+b)^2(a-b)^2
(6)(a^2-a)^2-(a-1)^2
=(a^2-a+a-1)(a^2-a-a+1)
=(a+1)(a-1)(a-1)^2
=(a+1)(a-1)^3
再问: 恩呢,谢谢你啊。我着急了一会了呢。
再答: 不用客气,如果满意请采纳
=x^2(x^2-1)
=x^2(x+1)(x-1)
(2)a(x^2-y^2)+b(y^2-x^2)
=(x^2-y^2)(a-b)
=(x+y)(x-y)(a-b)
(3)-27x^4+18x^3-3x^2
=-3x^2(9x^2-6x+1)
=-3x^2(3x-1)^2
(4)x^4-1
=(x^2+1)(x^2-1)
=(x^2+1)(x+1)(x-1)
(5)a^4-2a^b^2+b^4
=(a^2-b^2)^2
=(a+b)^2(a-b)^2
(6)(a^2-a)^2-(a-1)^2
=(a^2-a+a-1)(a^2-a-a+1)
=(a+1)(a-1)(a-1)^2
=(a+1)(a-1)^3
再问: 恩呢,谢谢你啊。我着急了一会了呢。
再答: 不用客气,如果满意请采纳
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
计算(1)x/x+y-x/x-y (2)a+2+4/a+2 (3)x^2-y^2/xy÷(x+y)
(X-3Y)(X+3Y)-(X+2Y)(X-4Y)-(2X-Y)2的平方
(3x-y)²-2x(4x-5y)-(x+2y)²
计算:(3x-4y)-[-(2y+x)+(x-3y)]-6x
1.((y+2x)(-2x+y)+4(x+2y)^2)/3y 2.(2(x-y)^3-8(x-y)^2(x+y)+6y(
5a+2b+(3a-2b) -3x-(x+1)+(4x+2) -2/1(x+y)+3/1(x-y)
x/x-y*y^2/x+y-x^3y2/x^4-y^4/x^2/x^2+y^2
去括号并合并同类项(1)3x-2(x+7)+2(2x+5) (2)(4x-3y)-[-(3y-x)+(x-y)]-5x
化简1) (-2x^ y^)(3x^ y^)(-4x^ y^)2) (6√x)\(3√x√x^5)3)已知函数f(x)的
计算 1.(-2x)^3-3x乘(x-2x^2) 2.【(x+2y)^2-(x-2y)(x+2y)】÷4y
已知集合A={(x,y)| (y-3)/ (x-1)=2,x,y∈R},B={(x,y)| 4x+ay=16,x,y∈