分解因式ax(x y)减ay(x y)
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1.ax-2ay+2bx-4by=ax+2bx-(2ay+4by)=(x-2y)(a+2b)2.x^3+x^2-4x-4=x(x^2-4)+(x^2-4)=(x-1)(x-2)(x+2)3.x^2-x
x(2x+y)(2x-y)
1.x³y³-2x²y²+xy=xy(x²y²-2xy+1)=xy(xy-1)²2.ax²+2a²x+a
(1)xy+ay-by=y(x+a-b)(2)3x(a-b)-2y(b-a)=3x(a-b)+2y(a-b)=(a-b)(3x+2y)(3)m^2-6m+9=m²-3m-3m+9=m(m-3
解2x²y-x³-xy²=x(2xy-x²-y²)=-x(x²-2xy+y²)=-x(x-y)²
=(3x)²-2*3x*2y+(2y)²=(3x-2y)²
第二题用图像法画出直角坐标系x^2+y^2=25表示圆心在原点半径是5的圆2x+3y=17是一直线直线和圆的两个交点就是方程的解求两个交点的坐标直接在图上用几何解就行了
@.-16x^4-x^2y^2=-x²(16x²+y²)@.4x^2-1/4y^2=(2x²+1/2y²)(2x²-1/2y²)@
3ax²-3ay²=3a(x²-y²)=3a(x+y)(x-y)
设t=xy+1;(xy+1)(x+1)(y+1)+xy=t(x+1)(y+1)+xy=t(xy+x+y+1)+xy=t(t+x+y)+xy=t^2+xt+yt+xy=(t+x)(t+y)-xy+xy=
2a²x-2ax+2\1x=2/1x(4a²-4a+1)=2/1x(2a-1)²x²-3xy+2y²=(x-y)(x-2y)
你的式子是无法分解的,已经是最简代数式了x^2-xy+y^2=(x-y/2)^2+3y^2/4恒大于0,无法分解
2x^2-4xy+2y^2=2(x^2-2xy+y^2)=2(x-y)^2
3ax^-3ay*=3a(x^2-y^4)=3a(x-y^2)(x+y^2)很高兴为您解答,【the1900】团队为您答题.请点击下面的【选为满意回答】按钮,如果有其他需要帮助的题目,您可以求助我.
(1)4x²-1/4y²=(2x+y/2)(2x-y/2)(2)ax²-ay²=a(x²-y²)=a(x+y)(x-y)(3)x²
(x-y+z)(x-y-z)
3乘以x平方减4xy减2估计应该是:3x^2-4xy-2y^2用求根公式的方法或配方法分解3x^2-4xy-2y^2=3[x-(2+√10)y/3][x-(2-√10)y/3]如果式子是3x^2-4x
3ax^2-3ay^2=3a(x^2-y^2)=3a(x+y)(x-y)
原式=2x²-4xy+2y²-7y²=(√2x-√2y)²-7y²=(√2x-√2y+√7y)(√2x-√2y-√7y)
x^2-y^2+ax+ay=(x+y)(x-y)+a(x+y)=(x+y)(x-y+a)