Question

b) (35 - 3x) chia hết cho x
c) (4x + 5) chia hết cho x
d) (3x + 4) chia hết cho (x -1)
Ai nhanh mik tick cho nhé!

Answer 1

b: =>35 chia hết cho x

hay \(x\in\left\{1;-1;5;-5;7;-7;35;-35\right\}\)

c: =>5 chia hết cho x

=>\(x\in\left\{1;-1;5;-5\right\}\)

d: =>3x-3+7 chia hết cho x-1

=>7 chia hết cho x-1

\(\Leftrightarrow x-1\in\left\{1;-1;7;-7\right\}\)

hay \(x\in\left\{2;0;8;-6\right\}\)