If fraction 3x If 2x + 1 is meaningful, then x satisfies the following condition___ .

The fraction is meaningful,
Then 2x + 1 ≠ 0,
∴x≠-1
2．

1. When x = 2, 2x of fraction 3x-6 is meaningless. 2. The condition that makes the 2nd power of fraction (x + 1) + 2x + 5 meaningful is I want the answer tonight! If it's good, right,

One
X = 2 is meaningless
Two
(x+1)^2+(2x+5)/2
X belongs to R

For the fraction (2x-a) / (3x-b), when x = - 1, the fraction is meaningless; when x = 4, the value of fraction is 0, find the value of a, B

When x = - 1, the denominator is 0 3 (- 1) - B = 0, B = - 3
When x = 4, the value of fraction is 0 and the molecule is 0 2 * 4-A = 0 a = 8

When x=_ The fraction 2x + 1 / 3x + 4 is meaningless=_ The value of fraction x + 1 / x + 2 is zero_ The value of fraction - 2 / 3x + 4 is nonnegative The answer is - 4 / 3, - 1

3x + 4 = 0; then x = - 4 / 3
X + 1 = 0; then x = - 1
Zero

If the fraction X-1 parts 3x + 5 is meaningless, when 3m-2x is 5-2m-x = 0, find the value of M?

If fraction X-1, 3x + 5 is meaningless
Then x = 1
When 5m-2x is 5-2m-x = 0
5/(3M-2)-2M-1=0
5-(2M+1)(3M-2)=0
6M^2-M-2-5=0
6M^2-M-7=0
(6M-7)(M+1)=0
M = 7 / 6 or - 1

If the fraction 3x + 5 / x-3 is meaningless, then when 5 / 3m-2x-1 / 2m-x = 0, the value of M is

If fraction 3x + 5 / x-3 is meaningless
Then: x-3 = 0
X=3
5/3m-2x-1/2m-x=0
5/(3m-6)=1/(2m-3)
3m-6=10m-15
7m=9
m=9/7

For the fraction 3x-n fraction x + m, when x = 3, the fraction value is 0; when x = 1, the fraction is meaningless, so find M-N fraction 2m + n

3 * 3-N ≠ 0; 3 + M = 0
1*3-n=0
The solution is n = 3; m = - 3
(2m+n)/(m-n)
=(-3)/(-6)
=1/2

Xiao Ming made up a problem: for the fraction 2x-a / 3x + B, when x = - 1 is, the fraction is meaningless; when x = 4, the value of the fraction is 0, and the value of the algebraic expression a / B is calculated

∵ when x = - 1 is, the fraction is meaningless ᙽ when x = - 1, 3x + B = 0, that is 3 * (- 1) + B = 0, then B = 3 and

If the fraction x + 1 / 3x + 5 is meaningless, simplify the fraction 4m-2x 5-2m-x 1

If there is no meaning, the denominator x + 1 = 0
x=-1
So the original formula = 5 / (4m + 2) - 1 / (2m + 1)
=(5-2)/(4m+1)
=3/(4m+1)

1. X-3 x + 3 2. (x ^ 2) + 1 / 2 2x 3. (x ^ 2) - 4 / 4 x + 4

If the denominator is not equal to 0, then 1. X is not equal to 3. 2. If x belongs to R 3. X is not equal to plus or minus 24. 2m is not equal to n

If fraction 3x If 2x + 1 is meaningful, then x satisfies the following condition___ .