5(2x-7y)-3(4x-10y) 怎么化简
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5(2x-7y)-3(4x-10y) 怎么化简
5(2x-7y)-3(4x-10y) 怎么化简
5(2x-7y)-3(4x-10y) 怎么化简
5(2x - 7y) - 3(4x - 10y)
= 10x - 35y - 12x + 30y
= -2x - 5y
10X-35Y-12X+30Y= -2X-5Y
=10x-35y-12x+10y
=(10-12)x+(-35+30)y
=-2x-5y
=10x-35y-12x+10y
=(10-12)x+(-35+30)y
=-2x-5y
5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解
5x^3y(x-y)^3-10x^4y^3(y-x)^2
5X^3Y(X-Y)-10X^4Y^3(Y-X)^2因式分解
计算(x^8-x^7y+x^5y^3-x^4y^4+x^3y^5-x^y^7+y^8)(x^2+xy+y^2)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian
化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90)
例X=1 y=21.X+Y=5 X-Y=15 2.2X+3Y=4 5X+6Y=7 3.X+3Y=5 3X+Y=-1 4.2X+Y=3 3X+5Y=11 5.4X+3Y=6 2X+Y=4 6.X+Y=180 X=3Y-10 7.3X-2Y=3 2X-Y=7 8.5X+3Y=7Y X+Y=45 9.3X+4Y=126X+8Y=24 X:6Y=1:4 10.X+Y=138 X-45=Y+53 11.X+Y=60 14Y=20X 12.2X+3Y=15.5 5X+6Y=35 13.X+Y=170 3
把(x-y)看作一个整体,化解:5(x-y)+2(x-y)-4(x-y)= 3(x-y)把(x-y)看作一个整体,化解:5(x-y)+2(x-y)-4(x-y)=3(x-y)²-4(x-y)+7(x-y)-6(x-y)²=
(15x^7y^5-10x^4^y4-20x^3y^2)÷(-5x^3y^2)
(3x-4y)(5x-4y)-(7x-8y)(6y-5x)
5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2]
(x+5y)^+(2x+10y)(3x-y)+(3x-y)^
(x+5y)²-(2x+10y)(3x-y)+(3x-y)²
化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
(2x-y)(3x-4y)-2(x-y)(2x-5y)简便运算
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
5(2x-7y)-(4x-10y)全过程