已知:M,X,Y满足(1)2/3(x-5)²+5|m|=0(2)-2a²b³ +¹
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/17 23:56:27
已知:M,X,Y满足(1)2/3(x-5)²+5|m|=0(2)-2a²b³ +¹与7b³a²是同类项.求代数式:2x²-6y²+m(xy-9y²)-(3x²-3xy+7y²)的值.
![已知:M,X,Y满足(1)2/3(x-5)²+5|m|=0(2)-2a²b³ +¹](/uploads/image/z/18008550-54-0.jpg?t=%E5%B7%B2%E7%9F%A5%3AM%2CX%2CY%E6%BB%A1%E8%B6%B3%281%292%2F3%28x-5%29%26%23178%3B%2B5%7Cm%7C%3D0%282%29-2a%26%23178%3Bb%26%23179%3B+%EF%BC%8B%26%23185)
因为2/3(x-5)²+5│m│=0
则 x=5 m=0
确定后面的条件没打错么?没有含有y的式子解不出来y啊
则 x=5 m=0
确定后面的条件没打错么?没有含有y的式子解不出来y啊
1.已知m、x、y 满足:(1)3/5(x—5)²+|m|=0;(2)—3a²b³与a
已知m,x,y满足条件:(1)2/3(x-5)²+5×(m的绝对值)=0;(2)-2a²b^(y+1
已知m,x,y满足2/3(x-5)²+5|m|=0,(2)-2a²b^(y+1)与7a²b
已知m,x,y满足:(2/5)(x+y)^2+3|m|=0;-3a^2b^y+4与2a^2b^3是同类项 ,
已知m、x、y满足:①(x-5)^2+5|m|=0;②:-2a^2b^y+1与3a^2b^3是同类项,求代数式5m^2x
已知m,x,y满足①(x-5)^2+|m-2|=0,②-2a b^y+1,与3a^2 b^3是同类项,求代数式5m^2x
已知m、x、y满足①2/3(x-5)²+5|m|=0,②-2a²b³是同类项,求代数式5m
已知m.x.y.满足3分之2平方+5/m/=0-------负2a平方b+1与3a平方b立方是同类项
已知方程组y-2x=m,2y+3x=m+1的解x,y满足x+3y大于等于0,则m的取值范围是 A.m大于等于-1/2 B
已知【x+y】/【2x+2y】=x+y/2x+2y=1/2 则x,y满足的条件是 A |x+y|>0 B m-3/m+1
y已知m.x.y满足2/3(x-5)平方+5 |m|=0;(2)-2a的平方b的y+1与7b的三次方a的二次方是同类项求
已知集合A={x|x²+4x=0},集合B={x|x²+2(m+1)x+m²-1},若满足