LCM of Polynomial Functions 3

[mathdad]

Find the LCM of the given polynomials.


x - 3; x^2 + 3x; x^3 - 9x

Solution:

x^2 + 3x = x(x + 3)

x^3 - 9x = x(x^2 - 9) = x(x - 3) (x + 3)

LCM = x(x - 3)(x + 3)

I can also say that the LCM is x^3 - 9x.

Yes?

 

[Harry_the_cat]

Yes.

 

[Deleted member 4993]

Find the LCM of the given polynomials.


x - 3; x^2 + 3x; x^3 - 9x

Solution:

x^2 + 3x = x(x + 3)

x^3 - 9x = x(x^2 - 9) = x(x - 3) (x + 3)

LCM = x(x - 3)(x + 3)

I can also say that the LCM is x^3 - 9x.

Yes?

Yes... but it is more useful in factorized form.

 

[mathdad]

Thank you everyone.