Câu 14: (1điểm) Tìm x, y  biết:

a)     8x( x +8) - x = 8

b)    y² - 18y  = - 81

Câu 13: (1,5 điểm) Phân tích các đa thức sau thành nhân tử

a)     x³  + ax² - 2ax - 4x

b)    2x² - 7x + 5

c)     x³ +27 + ( x - 3)( x + 3)

Write a paragraph about how students can deal with stress befor exams.

Read the passage and fill in each blank with one suitable word

Vancouver in western Canada is named after Captain George Vancouver of the British Royal Navy. However, Captain Vancouver was not the first European (1) _________ visit the area – the coast had already been explored by the Spanish. Nor did Captain Vancouver spend many days there, even (2) ________ the scenery amazed him and everyone else (3) _______ was travelling with him. The scenery still amazes visitors to (4) ________ city of Vancouver today. First-time visitors who are (5) _______ search of breathtaking views are usually directed to a beach about ten minutes (6) ________ the city centre. There, looking out over the sailing boats racing across the blue water, visitors see Vancouver’s towering skyline backed by the magnificent Coast Mountains. The city is regularly picked by international travel associations (7) ________ one of the world’s best tourist destinations. They are only confirming what the two million residents and eight million tourists visiting Greater Vancouver (8) ________ single year are always saying: there is simply (9) _____ other place on earth quite like it. It’s not just the gorgeous setting that appeals to people, (10) ______ also Vancouver’s wide range of sporting, cultural and entertainment facilities.

Phân thích đa thức thành nhân tử:

x^2 - y^2 -4x - 6y -5

Chỉ cần cách làm và công thức ạ

Thực hiện phép chia: 

(4x³+8x²+5x+3):(2x+3)

Làm tính chia: [(a−b)5+(a−b)2]:(a−b)