Question

find lcm of x^2-1 andx^2-x-2

Answer 1

Answer:

${x}^{2} - 1 = (x + 1)(x - 1) \\ \\ {x}^{2} - x - 2 = (x + 1)(x - 2) \\ \\ common \: factor \: is \: (x + 1)$