把4x^4-9x^2y^2 4y^4因式分解-搜答案-智慧作业帮

(2x-y)²-4(x-y)(x+2y)

写清楚点点比如说前面是X/X还是X/(X-Y)打上括号分段这样才能清楚的做

4x^3-x=x(4x²-1)=x(2x-1)(2x+1)（x+y）^2-9x^2=(x+y-3x)(x+y+3x)=(y-2x)(y+4x)x^2-y^2+2（x-y）=(x-y)(x+y

(x-y)(z+y-x+y+2y)÷4y=(x-y)(z-x+4y)÷4y{(x+y)(x-y)-(x-y)的2次方+2y(x-y)}除以4y=(x-y)(x+y-x+y+2y)÷4y=(x-y)(4

(x+2y)²-25(x-y)²=(x+2y+5x-5y)(x+2y-5x+5y)=(6x-3y)(7y-4x)=3（2x-y)(7y-4x)9(x-y)²+12(x&#

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

（3X+2Y）（3X-4Y）+9Y的平方=9x^2-6xy-8y^2+9y^2=9x^2-6xy+y^2=(3x-y)^2

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)

(2m+3n)(2m-n)-4n(2m-n)=(2m-n)(2m+3n-4n)=(2m-n)(2m-n)=(2m-n)^2(x+y)^2(x-y)+(x+y)(y-x)^2=(x+y)(x-y)(x+

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

4x^2+y^2-4xy-4(x^2-xy+2xy-2y^2)展开化简吧!

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

4x=9yx=9/4*y(1)(x+y)/y=[(9/4)y+y]/y=(9/4+1)y/y=9/4+1=13/4(2)(y-x)/2x=[y-(9/4)y]/[2*(9/4)y]=(1-9/4)y/

(2x-y)²-4(x-y)(x+y)=(4x²-4xy+y²)-4(x²-y²)=4x²-4xy+y²-4x²+4y&

原式=(x+y)^4+(x+y)^2(x-y)^2+(x-y)^4=(x+y)^4+2(x+y)^2(x-y)^2+(x-y)^4-(x+y)^2(x-y)^2=[(x+y)^2+(x-y)^2]^2

解9y=3x-(x-1)2x-9y+1=0①4(x+y)-(2x+4)=8y2x-4y-4=0②②-①得：5y-5=0∴y=1将y=1代入①得：2x-9+1=0∴x=4∴方程的解为：x=4,y=1

“4y^2/x-y”应该是“4y^2/x-2y”吧x+2y+4y^2/x-2y+4x^2y/4y^2-x^2=(x+2y)+4y^2/(x-2y)+4x^2y/(2y-x)(2y+x)=(x+2y)+

用提取公因式法,提取（x+3y)原式=（x+3y)[(3x-4y)-(x-2y)]=(x+3y)(2x-2y)=2(x+3y)(x-y)

(x+3y-4)(2x-y)

原式等于2x^2-xy+6xy-3y^2-8x+4y=2x^2+5xy-3y^2-8x+4y

4x^4y^2-5x^2y^2-9y^2=y^2(4x^4-5x^2-9)=y^2(4x^2-9)(x^2+1)=y^2(2x-3)(2x+3)(x^2+1)