Given the real number x y, the value of 2x-3y can be obtained by dividing y = radical (x? - 4) + radical (4-x? 2) + 1 divided by X-2

Given the real number x y, the value of 2x-3y can be obtained by dividing y = radical (x? - 4) + radical (4-x? 2) + 1 divided by X-2

Y = radical (x? - 4) + Radix (4-x?) + 1 divided by X-2 makes sense
Then x 2 - 4 ≥ 0, 4-x 2 ≥ 0, X-2 ≠ 0
Then x 2 = 4, X ≠ 2
Then x = - 2
So y = - 1 / 4
2x-3y
=-4+3/4
=-13/4

When x______ When, 3x − 1 makes sense in the range of real numbers

When 3x-1 ≥ 0, X ≥ 1
At 3:00,
3x − 1 makes sense in the range of real numbers
So the answer is: X ≥ 1
3．

If X. y is a real number, and y = root 4 minus x plus root x minus 4 plus 2, find y in root x plus X in Y minus 2,

From the meaning of the title
4-x greater than or equal to 0
X-4 greater than or equal to 0
X = 4
Bring in the original formula to get the value of Y
Just add X and y to the requirements

When x takes what real number, the following numbers are meaningful? (1) the square of root x + 1, (2) Radix 4x-1, (3) root X of X

1. Any real number
2. 4x-1≥0
x≥1/4
Three

If x, y are real numbers, and y = 1-4x + 4x-1 + 1 / 2, find x + 2 + Y-2 + Y-2

Determine x, y by definition domain
1-4x>=0,4x-1>=0 ==> x=1/4 ==> y=1/2
. Brief

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

x＜2/3

The simplest common denominator of a fraction of 3x, 1-x of X + 1, 5 (square of x-1) of 2XY is

x²-1=(x+1)(x-1)
1-x=-(x-1)
So the simplest common denominator is 3x (x + 1) (x-1)

To make 2x + 1 meaningful under the root of the formula X-1, the value range of X is,

X-1 is not equal to 0

If x + 1 / X of root = 3, then x 2 + 3x + 1 / X X=

√x+1/√x=3
(√x+1/√x)²=3²
x+2+1/x=9
x+1/x=7
x/(x²+3x+1)
=1/(x+1/x+3)
=1/(7+3)
=1/10

Third grade mathematics: formula method to solve the root sign 3x + 3 = 0

a=1,b=-2√3,c=3
The discriminant = △ = B ^ 2-4ac = 12-12 = 0,
So x = (- B ± √ (b ^ 2-4ac)) / 2A = (2 √ 3 ± √ 0) / 2 = √ 3
So the equation has two equal real roots, X1 = x2 = √ 3