đâu rồi

n²-7 chia hết cho n+3

=>n.(n+3)-3(n+3)+2 chia hết cho n+3

=>2 chia hết cho n+3 ; n+3\(\in\)Ư(2)

Ư(2)={-2;-1;1;2}

=>n\(\in\){-5;-4;-2;-1}

ọe ọe kinh quá

Mahatma Gandhi fought for the rights of coloured people in general and the Indians ____.

A. in time

B. in particular

C. in contrast

D. in fact