Question

Find the HCF and LCM of:
x^3-25x,x^3-9x^2+20x​

Answer 1

Answer:

Step-by-step explanation:

x^3 - 25x =x(x^2 - 25)

                =x(x-5)(x-5)

x^3-9x^2+20x​ = x(x^2-9x+20)

                        = x(x-5)(x-4)

the HCF =x(x-5)(x-5)(x-4)

the LCM =x(x-5)