Đặt a=3√16x-24; b=3√1-3x; c=3√19x-25
Ta có: b³ +c³=1-3x+19x-25=a³
Ta lại có: a=b+c
=>a³=b³ +c³+3bc(b+c)
0=3bc(b+c)
0=bc(b+c)
=> b=0 hoặc c=0 hoặc b+c=0sau đó tính tiếp :v

Weo thiệt luôn để tui hỏi anh tui nhó kết bạn đã men

uh cám ơn, 0975091286, zalo mik nha!!!!

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@congtybc

: bạn đang làm gì vậy ? nha bn ht xin k

im surf online math 

There are many books on the bookshelf

How many books are there in your school bag?

There is a TV in the living room. 

There are 45students in my class

There are 2 tables in the living room.

How many doors are there in the classroom?

ko nhưng mik tặng bn vé báo cáo

HT

Tặng bạn phíu báo cáo :)))

vì tưới nhiều hoặc ko để tiếp xúc với ánh nắng mặt trời

Vì cây đó đã được tưới nước, tưới thêm nó sẽ chết

kết bạn trên zalo hay olm 

nếu trên zalo thì cho xin sđt nha bạn

tớ thì thích cô Sắt Sắt trong truyện : "Bá đạo tổng tài nhẹ nhàng yêu" .

Câu hỏi là gì bạn?

My secondary school is a place that bears all the hallmarks of my childhood memories. It is placed in the center of my district. Surrounded by a paddy-field, it enjoys lined- trees and colorful garden, which creates a wonderful view. Moreover, this school was designed with a large- scale plan. It is a 2 storied building of u shape with capacity of 1000 people and it was invested heavily in infrastructures with well- equipped classrooms. In a good environment, students are given many precious chances to discover and develop their inner talents. Besides modern facilities, this school is also well- known for enthusias and qualified teachers who are always dedicated and devoted themselves to teaching career. In conclusion, studied in this school for four years, it has become an indispensable part in my life.

HT và $$$

My secondary school is placed in the center of my district. Surrounded by a paddy-field, it enjoys lined- trees and colorful garden, which creates a wonderful view. Moreover, this school was designed with a large- scale plan. It is a 2 storied building of u shape with capacity of 1000 people and it was invested heavily in infrastructures with well- equipped classrooms. In a good environment, students are given many precious chances to discover and develop their inner talents. Besides modern facilities, this school is also well- known for enthusias and qualified teachers who are always dedicated and devoted themselves to teaching career. In conclusion, my school has become an indispensable part in my life.