Tìm x

----- Nội dung dịch tự động từ ảnh -----
biết: -
Bài 17 : Tìm x ,
1) (x – 1)2 – (x – 2){x + 3) + (x + 2) = (x – 3)(x² + 3x + 9) + 6x(x + 2)
2) (x – 3)° - (2x + 1)(4x – 2x + 1) = (x + 2)° - (2x - 3)° - 18x(2x – 3)
3) (x + 2)3
4) (3x – – 5X2x + 5) = (3x - 1) - (2x + 3)2
+ 9x (3x – 1)
5) (2x + 1) - (3x + 2)? - (2x -
6) (x - 5)(x + 5) – (x + 4)2 + (4x + 1)
+ 12x(4x -1)
7) (3x - 1)(2x + 3) - 6(x -
- 9x(3x – 1)
8) (x + 3) - (x – 2)(x + 3) + (2x + 1)° =
9) (4х + 3X16х* - 12х + 9) — (4х— 1)* %3 (х + 2)* + 12x(4х- 1) - х(х + 3)
10) (3 - 2x) – (x – 5)(4x + 3) + (3 + x)(9 - 3x + x) = (x + 2)° – 6x(x + 2)
(х — 3x* + 3х + 9) + 6x(х + 2)
-
=
www
- (2х + 3) + (2х + 3X2х- 3)= (x — 2Xx* + 2х + 4) + 6x(х + 2)
2)(9x + 6x + 4) - (2x
5)(4x + 10x + 25) + 6x(2x + 1) – 9x?
= (4x + 2)(16x²
8х + 4)
2)2 + (3x
1)° = (3x + 1)(9x?
3x + 1)
6x(2x + 1) + (2x – 3)(4x+ 6x + 9)