Rewrite the sentence at the same meaning:
1.It won't harm us to see what special offers are on at the moment. --->
2.We weren't surprised by his success.--->
A=\(\dfrac{x+3}{x-2}\) có giá trị nguyên khi (x+3)⋮(x-2) Mà (x-2)⋮(x-2) ⇒(x+3)-(x-2)⋮(x-2) ⇒x+3-x+2 ⋮(x-2) ⇒5 ⋮(x-2) ⇒x-2 ∈ Ư(5)={-5;-1;1;5}
x-2 | -1 | 1 | 5 | -5 |
x | 1 | 3 | 7 | -3 |
Vậy x ∈ {1;3;7;-3}