Find the LCM of f(x) = 4(x - 1)^2 (x^2 + 6x + 5) and g(x) = 10(x - 1) (x + 2) * (x^2 + 7x + 10)

4(x - 1)^2 (x^2 + 6x + 5)

= 4(x-1)^2(x+1)(x+5)

10(x - 1) (x + 2) * (x^2 + 7x + 10)
= 10(x-1)(x+2)(x+2)(x+5)

then LCM = 20(x-1)^2(x+2)^2(x+1)(x+5)