đáp án là 3,071 km nhé.nếu thấy đúng thì k cho mk nha bn!

Cho phương trình \(x^2+2\left(m+2\right)x-2m-5=0\)(1) (m là tham số)

a) Tìm m để phương trình có 1 nghiệm bằng - 1. Khi đó tìm nghiệm còn lại của phương trình

b) Tìm m để phương trình (1) có 2 nghiệm \(x_1;x_2\) sao cho \(\left|x_1-x_2\right|\ge6\)

Nhờ mọi người giúp nhé.

a;b;c là cái gì bạn

1."Have you finished your homework".

->My mother asked...if i had finished my homework.

2.It isn't necessary for you to books the stickets.

->You don't.....have to books the tickets.

3.Ha is the shortest girl in my class

->No girl....in my class is shorter than Ha

4.Nobody has ever asked me that curious question.

-> I....have never been asked that curious question before

5.Let's go swimming tomorrow afternoon.

-> How........about going swimming tomorrow afternoon?

6. Though the doctor advised him, he keeps on smoking.

-> In spite of the fact that the doctor advised him, he keeps on smoking.

7. They hardly finish their work on time.

->Their work.....is hardly finished on time.

8.This is a story of a man. His life was an adventure(Whose).

->. This is a story of a man whose life was an adventure