4AB ^ 2-5-3a is several times and several terms, what is the cubic term

4AB ^ 2-5-3a is several times and several terms, what is the cubic term

It's a trinomial
The cubic term is 4AB ^ 2

3/2b+4/3a^3+3/4ab

（18a^3 16b 9a^2)/12a^3b

The coefficients and times of the binomial 2 ^ 2A ^ 2B ^ 3 are

Coefficient 4 times 3

It is known that the function f (x) is a monotone decreasing function defined on [- 2,2]

Domain [- 2,2]
∴-2≤1-m≤2 （1）
And - 2 ≤ m ≤ 2 (2)
F (x) is a monotone decreasing function defined on [- 2,2], so if the independent variable is large, the corresponding function value is small, if the independent variable is small, the corresponding function value is large
And 1-m ≥ m (3)
From the solution of (1) - - 1 ≤ m ≤ 3
From the solution of (3), m ≤ 1 / 2
Synthesis (2) is - 1 ≤ m ≤ 1 / 2

For rational numbers x and y, we define a new operation "*": X * y = ax + by + C, where a, B and C are constants and the right side of the equation
For rational numbers x and y, we define a new operation "*": X * y = ax + by, where a and B are constants, and the right side of the equation is the usual addition and multiplication operation. We know that 3 * 5 = 15, 4 * 7 = 28, then 1 * 1=

3a+5b=15,4a+7b=28;
A = - 35, B = 24;
Then 1 = 24-35 = - 11

When x takes what value, the following format makes sense in the range of real numbers
1）√-x（2）√2-3x（3）√（x-3）² （4)√1/3x-6）（5）√x+4/x-3

(1) X3 or X

What is the value of X
(1) Root minus 1 / X
(2) Root negative 3x-2
(3) The root sign is negative 2 (x + 3) & # 178;
(4) 1-x / radical 3-2x
(5) Radical X-2 / x-3

(1) Root minus 1 / X
-1/x≥0
1/x≤0
x0
2x

When x is a real number, the following expressions are meaningful in the range of real numbers
（1）√4+5x (2)x/1-x (3)√3x+2/x (4)x^2+1

（1）√4+5x
4+5x>=0
x>=-4/5
(2)x/1-x
1-x≠0
x≠1
(3)√3x+2/x
(3x + 2) x > = 0, and X ≠ 0
therefore
x> 0 or X

When x is a real number, the following expressions are meaningful in the range of real numbers
1. Root sign 0.2x + 3 2. Root sign x + 1 - root sign 1-x 3. X-2 / 2 root sign X-1 4. Square of root sign x + 25. X + 2 / 2 root sign x + 1

-1=