|3x-2y-3|+(7x+3y-53)²=0,求x与y的值.
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/13 15:29:17
|3x-2y-3|+(7x+3y-53)²=0,求x与y的值.
|3x-2y-3|+(7x+3y-53)²=0,求x与y的值.
|3x-2y-3|+(7x+3y-53)²=0,求x与y的值.
化简3(x-y)-7(x--y)+2(y-x)
2(x-y)²-3(x-y)(-y-x)
x(x-y)2-(y-x)3
-2x(3x-7y)+(x-y)(x^2+xy+y^2) 计算
(-7x^2-8y^2)*(-x^2+3y^2) (3x-2y)(y-3x)-(2x-y)(3x+y)
已知(x+y)2 =2,(x-y)3 =3,求(x+y)7(x-y)2(x+y)3(y-x)4 的值
已知方程组{(X+Y)-3(X-Y)=7,2(X+Y)+(X-Y)=-7}则(X+Y)(X-Y)=
[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
(-3x+7y)(-7y-3x)-(x-3y)(2x+3y)
18(x+y)^8(x-y)^7÷[3(x+y)^3(x-y)^3]^2
3(x-y)^2-7(x-y)+8(y-x)^2+6(y-x)合并同类项.
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
计算:(x-y)^7÷(y-x)^6+(-x-y)^3÷(x+y)^2
2(y-x)的平方-7(x-y)+6(x-y)-3(y-x)的平方
计算(x-y)^7÷(y-x)^6+9-x-y)^3÷(x+y)^2