# Math

posted by .

The lcm for...
(1+3t)
(1-9t)^2
(1-3t)
I'm not sure which answer I have is right, could you help me please.

• Math -

I think the middle one is a typo
You mean (1 - 9t^2)
which is in fact (1-3t)(1+3t)
so indeed the least common multiple is
(1-9 t^2) or (1-3t)(1+3t)

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