Solution to inequality: who will do it if the square of X + 6 is less than or equal to 5x? Thank you!

Solution to inequality: who will do it if the square of X + 6 is less than or equal to 5x? Thank you!

x^2+6

Find the following inequality solution set (1) | 2x-1 | 3 (2) x square - 5x + 4 less than or equal to 0, wait!

1. 2x-1 > 3 or 2x-12 or x2 or X

If 3x-2y = 0, then (x + y): (X-Y)=______ ．

If 3x-2y = 0, then 3x = 2Y, x = 23y, substituting the value of X into (x + y): (X-Y), 23y + Y23Y − y = 53Y − 13y = − 5. So (x + y): (X-Y) = - 5. So the answer is - 5

If 3x + 2y-3 = 0, x + y = how much?
3x + 2y-3 = 0 find the x power of 27 times the Y power of 9

The latter can be reduced to the (3x + 2Y) power of 3. The result is the third power of 3

How to calculate 1500-1-2-3-4 -... - 48-49-50

Use Gauss formula! Original formula = 1500 - (1 + 50) X25 = 1500-51x25 = 1500-1275 = 225

Simple calculation of (12.5 × 3 + 12.5) × 25 × 8

According to the title:
（12.5×3+12.5）×25×8
=12.5（1+3）X25X8
=（12.5X8）X（25X4）
=100X100
=10000
I wish you a happy study!

The application of the elimination method of the split term in the sequence of higher one number can best be listed under the example solution

Sum of split term method
The essence of the split term method is to decompose each term (general term) in the sequence, and then recombine them to eliminate some terms, and finally achieve the purpose of summation. For example: (1) 1 / N (n + 1) = 1 / n-1 / (n + 1) (2) 1 / (2n-1) (2n + 1) = 1 / 2 [1 / (2n-1) - 1 / (2n + 1)]
Example: in a sequence, an = 1 / [n (n + 2)], find the first n terms and Sn
∵ an = 1 / [n (n + 2)] = [(1 / N) - 1 / (n + 2)] / 2 (split term elimination method)
∴Sn=[1-(1/3)+(1/2)-(1/4)+(1/3)-(1/5)+… +(1/n) -1/(n+2)]/2
=(3/2)-(2n+3)/(n+1)(n+2).

Make the graph of function y = (2x-1) / (x + 1) and write the monotone interval of the function

The image of the function y = (2x-1) / (x + 1) is given and the monotone interval analysis of the function is written out: ∵ when the function y = (2x-1) / (x + 1) and its definition domain is x ≠ - 1, X ∈ (- 1, + ∞), the function y monotonically increases; when x ∈ (- 1, + ∞), the function y monotonically increases; the image is as follows:

The greatest common factor of 10, 18 and 30 is () and the least common multiple is ()

The greatest common factor of 10, 18 and 30 is (2), and the least common multiple is (90)

If a is greater than 0, B is greater than 0, and ab = a + B + 3, find the minimum value of ab

∵ a, B are positive numbers
∴a+b≥2√ab∵ab=a+b+3
∴ab≥2√ab+3
The solution of the inequality about √ AB is √ ab ≥ 3
∴ab≥9
Similarly, ab ≤ (a + b) ^ 2 / 4 can be obtained by using the mean inequality
The inequality of a + B + 3 ≤ (a + b) ^ 2 / 4 solution about (a + b) is a + B ≥ 6, that is, the minimum value of a + B is 6