The problem
Click to see the original problem
how did you get all real numbers
Answer provided by our tutors
Left hand side of the inequality has absolute value and absolute value of any number is always greater than or equal to zero (by the definition of absolute value).
Right hand side of the inequality is negative number, '-14', so the inequality is valid for any number 'x'.
You can obtain an explanation for any step by clicking on it. Please note that you cannot click on the very first expression, which is the original problem: