Question

tap hop cac so nguyen x  thoa man / x +2 / = 10

Answer 1

|x + 2| = 10

\(\Rightarrow\) x + 2 \(\in\) {10; -10}

\(\Rightarrow\) x \(\in\) {8; -12}

Answer 2

|x+2|=10

=> x+2=10 hoặc x+2=-10

Nếu x+2=10=>x=10-2=8

Nếu x+2=-10=>=-10-2=-12

Vậy x=8 hoặc x=-12

Answer 3

|x+2|=10

=>x+2=10        hoac   x+2=-10

x=10-2                       x=-10-2

x=8                            x=-12