去括号 2(a-b)-3(c+d) -5/2(m-n)+1/3(c+d) 去括号并合并同类项: (8x-5y)-(4x-9y)去括号并合并同类项: x-(2x-y)+(3x-2y) 2(x+y)+(-5x+2y) -2(-3xy+2z)+3(-2xy-5x)
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![去括号 2(a-b)-3(c+d) -5/2(m-n)+1/3(c+d) 去括号并合并同类项: (8x-5y)-(4x-9y)去括号并合并同类项: x-(2x-y)+(3x-2y) 2(x+y)+(-5x+2y) -2(-3xy+2z)+3(-2xy-5x)](/uploads/image/z/2769709-13-9.jpg?t=%E5%8E%BB%E6%8B%AC%E5%8F%B7+2%EF%BC%88a-b%EF%BC%89-3%EF%BC%88c%2Bd%EF%BC%89+-5%2F2%EF%BC%88m-n%EF%BC%89%2B1%2F3%EF%BC%88c%2Bd%EF%BC%89+%E5%8E%BB%E6%8B%AC%E5%8F%B7%E5%B9%B6%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E9%A1%B9%EF%BC%9A+%EF%BC%888x-5y%EF%BC%89-%EF%BC%884x-9y%EF%BC%89%E5%8E%BB%E6%8B%AC%E5%8F%B7%E5%B9%B6%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E9%A1%B9%EF%BC%9A+x-%EF%BC%882x-y%EF%BC%89%2B%EF%BC%883x-2y%EF%BC%89+2%EF%BC%88x%2By%EF%BC%89%2B%EF%BC%88-5x%2B2y%EF%BC%89+-2%EF%BC%88-3xy%2B2z%EF%BC%89%2B3%EF%BC%88-2xy-5x%EF%BC%89)
去括号 2(a-b)-3(c+d) -5/2(m-n)+1/3(c+d) 去括号并合并同类项: (8x-5y)-(4x-9y)去括号并合并同类项: x-(2x-y)+(3x-2y) 2(x+y)+(-5x+2y) -2(-3xy+2z)+3(-2xy-5x)
去括号 2(a-b)-3(c+d) -5/2(m-n)+1/3(c+d) 去括号并合并同类项: (8x-5y)-(4x-9y)
去括号并合并同类项: x-(2x-y)+(3x-2y) 2(x+y)+(-5x+2y) -2(-3xy+2z)+3(-2xy-5x)
去括号 2(a-b)-3(c+d) -5/2(m-n)+1/3(c+d) 去括号并合并同类项: (8x-5y)-(4x-9y)去括号并合并同类项: x-(2x-y)+(3x-2y) 2(x+y)+(-5x+2y) -2(-3xy+2z)+3(-2xy-5x)
2(a-b)-3(c+d)
=2a-2b-3c-3d
-5/2(m-n)+1/3(c+d)
=-5/2m-5/2n+1/3c+1/3d
(8x-5y)-(4x-9y)
=8x-5y-4x+9y
=4x+4y
x-(2x-y)+(3x-2y)
=x-2x+y+3x-2y
=2x-y
2(x+y)+(-5x+2y)
=2x+2y-5x+2y
=-3x+4y
-2(-3xy+2z)+3(-2xy-5x)
=6xy-4z-6xy+15x
=15x-4z
3
a-(b-c+d)去括号 -(2x-y)+(2-z)去括号 4a-2(b-3c)去括号 -5a+1/2(4x-6)去括号 2(a-b)-3(c+d-2/5(m-n)+1/3(p-q)去括号急需!快~3三分钟内.
这个 怎么去括号 (a+b)(c-d)
a-(2b-3c)去括号是多少?
a-(b+c-d)去括号a-(b+c-d)= a+5(b+2c-3d)= a-m(b+2c-3d)=去括号
去括号 (初一)2(a-b)= a+(-b+c)=a-(-b-c)= (a-b)+(-b+c)-3(C-d)=a+(b-c)=a-(b-c)=
(a-b)-(-c+d)怎么去括号,去括号法则
去括号:a-(2b-3c)=,2(a-b)-3(c-d)=
a-(-b+c-d)如何去括号
a+(-b+c-d)去括号,
-(a+b)+(c-d)怎么去括号
(a-c)+(-b-d)去括号!
(a+b)-(-c+d)如何去括号
去括号:2a²-(a-b+c)
[a-(b-c)]去括号应为 ( ) A.-a+b+c B.-a+b-c C.-a-b-c D.-a-b+c
去括号,添括号①-b-(2a-b)= ②-(a-c)-(b-d)= ③a-3b+2c=a-( ) ④-y的平方+2y-1+x的平方=x的平方-( )
去括号:-(-a+b-1) A -a+b-1 B a+b+1 C a -b去括号:-(-a+b-1)A -a+b-1 B a+b+1 C a -b +1 D -a+b+1
去括号:﹣2(a-b+c)
1)a+(a-2b-c)=2)a-(b+c-d)=3)-3(2a+4b)4)4(3x-5y)=5)m-2(p-q)=去括号