Question

Find LCM : p²- 3p+ 2, p² - 4
7​

Answer 1

Answer:

p² - 3p + 2

= p² - 2p - p + 2 = p(p - 2) - (p - 2) = (p - 2)(p - 1)

p² - 4 = (p - 2)(p + 2)

Hence, LCM of the given numbers

=(p - 2)(p - 1)(p + 2)

= (p² - 4)(p - 1)

= p³ - p² - 4p + 4