还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y=2x-xy²+13、一个长方形

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还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y还有:(3x²y-2x

还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y=2x-xy²+13、一个长方形
还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y
还有:(3x²y-2xy²)/M=-3x+2,M等于多少?
1、((a+b)²-(a-b))/(a+b)=?
2、____/3x²y=2x-xy²+1
3、一个长方形的面积为a²-2ab+a,宽为a,则长方形的长为______

还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y还有:(3x²y-2xy²)/M=-3x+2,M等于多少?1、((a+b)²-(a-b))/(a+b)=?2、____/3x²y=2x-xy²+13、一个长方形
(3x²y-2xy²)/M=-3x+2
M=(3x²y-2xy²)/(-3x+2)
1、((a+b)²-(a-b))/(a+b)=a+b-(a-b)/(a+b)
2、(6x³y-3x³y³+3x²y)/3x²y=2x-xy²+1
3、一个长方形的面积为a²-2ab+a,宽为a,则长方形的长为a-2b+1______

m=-xy

1.(3x²y-2xy²)/M=-3x+2,M等于多少?
M=(3x²y-2xy²)/(-3x+2)=[-xy(-3x+2)+2xy-2xy²]/(-3x+2)=-xy+[2xy(1-y)/(-3x+2)]
2.、[(a+b)²-(a-b)]/(a+b)=(a+b)-[(a-b)/(a+b
3、M/3x²...

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1.(3x²y-2xy²)/M=-3x+2,M等于多少?
M=(3x²y-2xy²)/(-3x+2)=[-xy(-3x+2)+2xy-2xy²]/(-3x+2)=-xy+[2xy(1-y)/(-3x+2)]
2.、[(a+b)²-(a-b)]/(a+b)=(a+b)-[(a-b)/(a+b
3、M/3x²y=2x-xy²+1, M=?
M=3x²y(2x-xy²+1)=6x³y-3x³y³+3x²y
4.一个长方形的面积为a²-2ab+a,宽为a,则长方形的长为______
长=(a²-2ab+a)/a=a-2b+1

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用公式法进行因式分解 x(x+4)+4 25(x+y)²-9(x+y)² (x-y)(x²-xy+y²)+xy(y-x) 2a&su 若x²+xy-2y²=0,则x²+3xy+y²/x²+y² x²+xy-2y²=0则x²+3xy+y²/x²+y² 代数式化简、求值一.化简x²y-3xy²+2yx²+y²x5(a²b-3ab²)-2(a²b-7ab²)二.化简、求值(1)(4a+3a²-3+3a³)-(-a+4a³),a=-2(2)(2x²y-2xy²)-[(-3x²y²+3x&su 计算:4xy²-3x²y-{3x²y-[2xy²-4x²y+2(x²y-2xy²)]急 1.8a-4a²-4.2.m²-12m+36.3.(m+m)²-6(m+n)+9.4.3ax²+6axy+3ay².5.-x&su完全平方公式1。8a-4a²-4。m²-12m+36。(m+m)²-6(m+n)+9。3ax²+6axy+3ay²。-x²-4y²+4xy。2分之一x²+2xy+2y² 1.(-3a)²·(2a-a-3) 2.9x(-2x²-xy+y²)·(-xy)3.3x(x²-2x+1)-2x²(x+1)4.(二分之一ab+a²-b²)·2ab-(-ab)²5.a²(a²+a+1)-a(a³-1)求值:(3x²)³-7x&su 已知:x²+xy=3,xy+y²=-2 求:2x²-xy-3y² x/y=2,求x²-3xy+y²/2x²-3xy+5y² 已知x/y=3,求x²+2xy-3y²/x²-2xy+y² 已知x/y=3,求x²+2xy-3y²/x²-xy+y²的值 x/y=2,求分式x²-xy+3y²/x²+xy+6y² 因式分解X²-3Xy+2y²+X-2 因式分解 x²-3xy+2y²+x-2 6x²-xy-15y²=0 求x²-2xy+4y²/2x²-3xy-3y²告诉下 6x²-xy-15y²=0 求2x²-3xy-3y²分之x²-2xy+4y² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² + xY- 2Y² =求x² - 4x Y+ Y² = 若1/x+1/y=3,则2x-xy+2y/x-2xy+y的值是多少?还有已知x/y=2/7,求x²-3xy+2y²/2x²-3xy+2y&s后面这个应该是已知x/y=2/7,求x²-3xy+2y²/2x²-3xy+2y²