Giải pt: a. $log_x(2x^2-3x-4)=2$ b. $log_{x+3}(3-\sqrt{x^2-2x+1})=1/2$ Giải rõ ràng, chi tiết ạ

Choose the suitable words from the list to complete the letter of complaint below: bought – to do – about – changing – off – worth – of – tried – pick – work December 12 th, 2017 Dear Sir, I am writing to complain (1 )……….. the car that I (2) ……… from you yesterday. It is just a heap (3 ) ………….. scrap; when I (4 ) ………….. to start it this morning the key wouldn’t turn in the lock, the battery was flat and two of the plugs needed(5) ................................ .Then when I finally got it going, the bonnet wouldn’t stay closed and the driver’s side door fell (6 ) .............................. . And when I tried to stop to (7) .......................... up the door, the brake didn’t (8) ........................ so I crashed into a tree and smashed the radiator. Also, one of the wheels came off. Do you really think this car is (9) ............................... $ 350? Well, if you do, I don’t. What are you going (10 ).................................. about it?

tìm x biết: (10x+1)(2x-2)=(9x+4)(3x-5)

Làm giúp e ạ Nhanh dùm e,e vote 5 sao

lm hết giúp m với cần gấp lắm!!!!!

đề : tìm giá trị lượng giác còn lại ạ giúp em vs ạ em cảm ơn rất nhiều ạ

Tính: $C$ $=$ $($ $\frac{x^2+x+1}{x^2+x}$ $-$ $\frac{x^2-x+1}{x^2-x}$ $)$ $.$ $\frac{x^4+x^3-x^2-x}{x+1}$

Giải hộ mk câu c vs d bài 3 và bài 4 câu a và c vs ạ hứa vote 5*

123 - ( 6. x + 40 ) = 23 Tìm x 2 phút !!!

Vật lí này :)))))))))) (Giải thích, viết đủ công thức sẽ dc hay nhất)