Math Is Fun Forum

Oculus8596

Banned

From: Great Lakes,Illinois

Registered: 2024-09-18

Posts: 126

Find LCM of Polynomials

Find LCM of the given polynomial.

3x^2 - 27 and 2x^2 - x - 15

I know that 3x^2 - 27 factors put to be
3(x^2- 9) = 3(x - 3)(x + 3).

I also know that 2x^2 - x - 15 factors out to be
(x - 3)(2x + 5).

I now have to select from the following:

3(x - 3)(x + 3), (x - 3)(2x + 5)

LCM = 3(x - 3)^2 (x + 3) (2x + 5)

Do you agree?

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