Solving the power of (x + 3) = 4 (2x-5) by factorization I don't know how to do this kind of problem~

Solving the power of (x + 3) = 4 (2x-5) by factorization I don't know how to do this kind of problem~

The power of (x + 3) = the power of 4 (2x-5)
The result is that the power of (x + 3) - 4 (2x-5) = 0
The power of (x + 3) - [2 (2x-5)] = 0
[(x+3)+2(2x-5)]*[(x+3)-2(2x-5)]=0
(3x-7)(-3x+13)=0
5x-7=0 -3x+13=0
x1=7/5 x2=13/3

Factorization method to solve 1 / 2 (X-2) square + X-2

1 / 2 (X-2) square + X-2
=（x-2）【1/2（x-2）+1】
=（x-2）【1/2x-1+1】
=1/2x（x-2）

How to solve (x + 4) square = 5 (x + 4) is like factorization

Term shifting factorization
Square of (x + 4) = 5 (x + 4)
That is, the square of (x + 4) - 5 (x + 4) = 0
Factorization of merging congeners

Using factorization method to solve the following problem: the square of (x-1) - 5 (x-1) + 4 = 0

Take X & # 178; - 1 as a number and multiply it by a cross
(x squared-1) squared-5 (x squared-1) + 4 = 0
（x²-1-4）(x²-1-1)=0
(x²-5)(x²-2)=0
X = ± 5 or x = ± 2

The surface area of a cuboid is 78 square centimeters, the bottom area is 15 square centimeters, and the perimeter of the bottom surface is 16 centimeters. What is the volume of this cuboid?

The lateral area is 78-15 × 2 = 48 square centimeters
So the height is 48-16 = 3cm
So the volume is 15 × 3 = 45 cubic centimeters

Sin α / cos α = Tan α, what about cos α / sin α
Sin α / cos α = Tan α, what about cos α / sin α

sinα/cosα= tanα
Then cos α / sin α = Tan ^ - 1 α = cot α

If LGA and LGB are two different real roots of the equation 2x ^ 2-4x + 1 = 0, then a * B=

Answer: 100
Solution:
∵ LGA, LGB are two different real roots of the equation 2x ^ 2-4x + 1 = 0
(Weida theorem) LGA + LGB = 2, lgalgb = 1 / 2
∵lga+lgb=lg(ab)
∴lg(ab)=2
∴ab=10^2=100

The value range of the independent variable in the function y = radical (x + 2) / X clearly indicates that the coefficient K of the inverse proportional function is not equal to 0. Why is the answer x > = - 2 and X ≠ 0
Value range of independent variable in function y = radical (x + 2) / X
Why is the answer x > = - 2 and X ≠ 0 not x > - 2 and X ≠ 0

Well, the title doesn't say it's an inverse scale function

7, and the sum is 11. 8

Let this number be X
6x+4×0.7=11.8
6x+2.8=11.8
6x=9
x=1.5

If the derivative of F (x) is greater than or equal to 0, it is an increasing function. If there is a large section of derivative of F (x) equal to 0
No, it's not an increasing function
In general, let the domain of F (x) be d. for the values x1, X2 of any two independent variables on an interval in the domain D, if x1

If the derivative of F (x) is equal to 0, then f '(x) must be a piecewise function
For example, if x ≥ 0, f (x) = x; if x