Multiple choice What is the LCM of x2 - z2 and x + z? (x + z) (x - z) (x + z)2 (x - z)2 x - z Reveal answer Fill a bubble to check yourself A Correct answer Explanation Factors of (x2 - z2) = (x + z) (x - z) Factors of (x + z) = (x + z) LCM = (x + z) (x - z) = (x2 - z2)