(x+3y)^2-2(x^2-9y^2)+(x-3y)^2
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 07:50:41
(x+3y)^2-2(x^2-9y^2)+(x-3y)^2(x+3y)^2-2(x^2-9y^2)+(x-3y)^2(x+3y)^2-2(x^2-9y^2)+(x-3y)^2(x+3y)^2-2(x^
(x+3y)^2-2(x^2-9y^2)+(x-3y)^2
(x+3y)^2-2(x^2-9y^2)+(x-3y)^2
(x+3y)^2-2(x^2-9y^2)+(x-3y)^2
(x+3y)^2-2(x^2-9y^2)+(x-3y)^2
=(x+3y)^2-2(x+3y)(x-3y)+(x-3y)^2
=(x+3y-x+3y)^2 (应用平方和公式)
=(6y)^2
=36y^2
原式=(x+3y)²-2(x+3y)(x-3y)+(x-3y)²
=[(x+3y)-(x-3y)]²
=(6y)²
=36y²
x(x-y)2-(y-x)3
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
计算:x+2y/x-y+2x/y-x-3y/x-y
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
3(x+y)-2(x-y)=11 4(x+y)+3(x-y)=9
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
81/8*(-x-y)^6*(x-y)^3*4/9(x+y)^4*(y-x)^2
计算(x-y)^7÷(y-x)^6+9-x-y)^3÷(x+y)^2
化简y(x+y)+(x+y)(x-y)-x^2
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
2X(2X-3Y)-3Y(X+Y)
(-2x y)^2-(3y-x)(-x-3y)