化简:(3x-4y)(3x+4y)-(5x-2y)的平方
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化简:(3x-4y)(3x+4y)-(5x-2y)的平方
化简:(3x-4y)(3x+4y)-(5x-2y)的平方
化简:(3x-4y)(3x+4y)-(5x-2y)的平方
(3x-4y)(3x+4y)-(5x-2y)的平方
=9x^2-16y^2-25x^2+20xy-4y^2
= -16x^2+20xy-20y^2
(x+y)^6/(x+y)^4-(x-y)^5/(x-y)^3 化简 ..
化简[(3x+4y)^2-(2x+y)(2x-y)+(-x+y)(5x-y)]除以-2y,其中x=-1,y=1
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
化简:(4x-3y)-[-(2x+y)+(x-y)]-5x
化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90)
化简5y-x/x²-y²-3x-4y/y²-x²-x+2y/x²-y².
(y-x)+x(x-y)^3-(y-x)^4 因式分解
-4(x-y)平方-(x-y)+3(y-x)+6(y-x)平方 化简
(5x-3y)(3y+5x)-(4y-3x)(3x-4y)
5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2]
(5x+3y)(3y-5x)-(4x-y)(4y+x)=
(3x-4y)(5x-4y)-(7x-8y)(6y-5x)
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
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
(2x-y)(3x-4y)-2(x-y)(2x-5y)简便运算