Answer :
answer: 2 and -2
explanation: if you plug in 2 or -2 or x, then it would always become 2. this is because if you take the absolute value of any number, then it would become positive. this makes the equation true because 2 + 2 = 4
explanation: if you plug in 2 or -2 or x, then it would always become 2. this is because if you take the absolute value of any number, then it would become positive. this makes the equation true because 2 + 2 = 4