This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
The image shows a set defined as X = \x : x^2 - 9 = 0, x is an integer\. To find X, we need to solve the equation x^2 - 9 = 0 and then select the solutions that are integers. Step 1: Solve the equation x^2 - 9 = 0. x^2 - 9 = 0 Add 9 to both sides: x^2 = 9 Take the square root of both sides: x = ±sqrt(9) x = ± 3 So, the solutions are x = 3 and x = -3. Step 2: Identify the integer solutions. Both 3 and -3 are integers. Step 3: Write the set X. The set X consists of all integers x that satisfy x^2 - 9 = 0. X = \-3, 3\ The value of X is: X = \-3, 3\ That's 2 down. 3 left today — send the next one.