If the root minus 2x minus 1 / 3 has some meaning in the range of real numbers, then x is equal to?

If the root minus 2x minus 1 / 3 has some meaning in the range of real numbers, then x is equal to?

X is less than or equal to minus one sixth

If x.y is a real number and y = x + 2 {(root x minus 4) + (root 4 minus x power) + 1}, find the value of X + y under the root Is the people's education press 9 mathematics class reach the standard, page 9, question 19

Y = x + 2 {(root x minus 4) + (root 4 minus x) + 1},
Root x minus 4 > = 0
Root 4 minus x square > = 0
So x-4 = 4-x = 0
x1=2,y1=x+1/2=5/2
X2 = - 2, y2 = - 3 / 2, (x + y = - 7 / 2, so x + y under the radical is meaningless in the range of real numbers)
So,
X + y = 3 (radical 2) / 2

If the real numbers x and y satisfy the conditions of x 2 + y? - 4x-2y + 5 = 0, then x + Y / 3y-2 under radical sign is () A 1 B 3 / 2 + C 3 + 2 times root number 2 D 3 - 2 times root number 2

x²+y²-4x-2y+5=0
x²-4x+4+y²-2y+1=0
(x-2)²+(y-1)²=0
x-2=0 x=2
y-1=0 y=1
3 + 2 times root sign 2, select C

When x___ When, 3-4x makes sense in the real range

A kind of
3-4x makes sense in the real range,
ν 3-4x ≥ 0, X ≤ 3
4．

The root sign x ^ 2-4x + 1 / 4 is meaningful when x takes any real number?

√[1/(x^2-4x+4)]=√[1/(x-2)^2]=|1/(x-2)|
Therefore, the condition that makes it meaningful is x ≠ 2!

If - 3x is the fraction of - 2x, then the value of

-(/x-1/)/(3x-2)＜0
(/x-1/)/(3x-2)＞0
Then / 3x-0 / > 0
Solving equations / X-1 / > 0 3x-2 > 0
X > 2 / 3

If the value of fraction | X-1 | / 2-3x is negative, then the value range of X is

x> 2 / 3 and X is not equal to 1

If 3x-4 of fraction 2-x yields a negative number, then the value range of X is

According to the meaning of the title:
（2-x）*（3x-4）0
x>2 and x

If the value of 4 of the fraction 5-3x is negative, then the value range of X is

If the numerator is positive, the fraction is negative only if the denominator is negative. Therefore, if 5-3x < 0, x > 5 / 3 can be obtained

If the value of fraction 11 / 3x-2 is negative, then the value range of X is

If the value of fraction 11 / (3x-2) is negative, then the value range of X is
3x-2