3x-12x^3x^2(x-y)+(y-x)-a^4-49b^2+14a^2ba^2(m-n)+b^2(n-m)16(a
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:2024/11/20 08:16:07
3x-12x^3
x^2(x-y)+(y-x)
-a^4-49b^2+14a^2b
a^2(m-n)+b^2(n-m)
16(a-1)^2-(a+2)^2
ax^2+2ax-8a
x^2(x-y)+(y-x)
-a^4-49b^2+14a^2b
a^2(m-n)+b^2(n-m)
16(a-1)^2-(a+2)^2
ax^2+2ax-8a
3x-12x^3
=3x(1-4x^2)
=3x(1+2x)(1-2x)
x^2(x-y)+(y-x)
=(x-y)(x^2-1)
=(x-y)(x+1)(x-1)
-a^4-49b^2+14a^2b
=-(a^4-14a^2b+49b^2)
=-(a^2-7b)^2
a^2(m-n)+b^2(n-m)
=(m-n)(a^2-b^2)
=(m-n)(a+b)(a-b)
16(a-1)^2-(a+2)^2
=[4(a-1)]^2-(a+2)^2
=(4a-4+a+2)(4a-4-a-2)
=(5a-2)(3a-6)
ax^2+2ax-8a
=a(x^2+2x-8)
=a(x+4)(x-2)
=3x(1-4x^2)
=3x(1+2x)(1-2x)
x^2(x-y)+(y-x)
=(x-y)(x^2-1)
=(x-y)(x+1)(x-1)
-a^4-49b^2+14a^2b
=-(a^4-14a^2b+49b^2)
=-(a^2-7b)^2
a^2(m-n)+b^2(n-m)
=(m-n)(a^2-b^2)
=(m-n)(a+b)(a-b)
16(a-1)^2-(a+2)^2
=[4(a-1)]^2-(a+2)^2
=(4a-4+a+2)(4a-4-a-2)
=(5a-2)(3a-6)
ax^2+2ax-8a
=a(x^2+2x-8)
=a(x+4)(x-2)
分解因式:a^3-a,b^2(x-3)+b^2(3-x),16(m-n)^2-9(m+n)^2,4x^2(x-y)+(y
分解公因式:2(m-n)^2-m(m-n) x(x-y)^2-y(y-x)^2 18(a-b)^3-12b(b-a)^2
分解公因式p(x-y)-q(y-x)(a+b)(a-b)-(b+a)10a(x-y)^2-5b(y-x)3p(m-2n)
把下列各式因式分解(2m+3n)(2m-n)-4n(2m-n)(x+y)^2(x-y)+(x+y)(y-x)^24a(x
7(a-1)+x(a-1),3(a-b)²+6(b-a),2(m-n)²-m(m-n),x(x-y)
一、因式分解1.x(x+y)(x-y)-x(x+y)^22.(a+b)(a-b)-(b+a)3.(m+n)^2-n^24
三道计算题(-2y^2-3x)(3x-2y^2) -(3m^2-n)(3m^2+n) (1/2a^m-b^n)(b^n+
四道计算题(-2y^2-3x)(3x-2y^2) -(3m^2-n)(3m^2+n) (1/2a^m-b^n)(b^n+
4(x-y)三次方-2y(y-x)平方 3m(m-n)平方-6n(n-m) 8a(x-y)三次方-b(y-x)平方
若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,
分解因式1.(2m-n)^2-(m-2n)^2 2.49(2a-3b)^2-9(a+b)^2 3.xy(x+y)-4x^
因式分解:a²(m+n)³-a²b³ y²(x²-2x)