(x-1) times (2x-1) equals? It must be solved on April 23 this evening!

(x-1) times (2x-1) equals? It must be solved on April 23 this evening!

(x-1) times (2x-1) = 2x ^ 2-3x + 1

(- 2x ^ 2) ^ 3 times (- 2x) ^ 3-x ^ 3 [(- 2x) ^ 2] 3 is equal to,

(- 2x ^ 2) ^ 3 times (- 2x) ^ 3-x ^ 3 [(- 2x) ^ 2] ^ 3
=(- 8x ^ 6) times (- 8x ^ 3) - x ^ 3 [4x ^ 2] ^ 3
=64x^9-x^3【64x^6】
=64x^9-64x^9
=0

|2x-3|+|2x-1|-6

|2x-3|+|2x-1|-6≤0
===> |2x-3|+|2x-1|≤6
① When x ≥ 3 / 2:
The original formula = = > (2x-3) + (2x-1) ≤ 6
===> 4x≤10
===> x≤5/2
Therefore, 3 / 2 ≤ x ≤ 5 / 2 （1）
② When 1 / 2 ≤ x ≤ 3 / 2:
Original formula = = > 3-2x + 2x-1 ≤ 6
===> 2≤6
Obviously, it also meets the requirements of （2）
③ When x ＜ 1 / 2:
Original formula = > 3-2x + 1-2x ≤ 6
===> 4x≥-2
===> x≥-1/2
So, - 1 / 2 ≤ x ＜ 1 / 2 （3）
To sum up (1) (2) (3) - - 1 / 2 ≤ x ≤ 5 / 2

The square of a number is 6. What is the number

The square of a number is 6, which may be √ 6 or - √ 6

A six digit perfect square
A six digit complete square number, its first digit is 5, the last digit is 5, and three of the other four digits are multiples of 5. This six digit number is 5

The bits of a square number are 5
Then the number on the tenth must be 2
The rest can be tested according to conditions
This number is 555025

The square of a number is always greater than that number

No, the square of one is one

The square of a number equals 6. What is the number?

Root 6
That's the square root of six

(x-2a) squared-a (2a-x) quick!

（x-2a）²-a（2a-x）
=x²＋（2a）²＋2（2ax）-2a²＋ax
=x²＋2a²＋5ax

(A's square + 5a) - 2 (1 / 2A's Square - 4A) fast

(a²+5a)-2(1/2a²+4a)
=a²+5a-a²-8a
=-3a

The square-2a + 1-4b factorization of a,

The square of a-2a + the square of 1-4b
=(a-1)²-4b²
=(a-1+2b)(a-1-2b)