Least common multiple of polynomials | Mathematics III | High School Math | Khan Academy

Sal finds the least common multiple (LCM) of 3z³-6z²-9z and 7z⁴+21z³+14z².

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[alyssabonnau]

Confused as to why the LCM is 21z^2 and not 21z^3?

[patroloconac]

Yes! I found that helpfull and interesting! Thank you!

[abyansh]

It’s wonderful thank you, I could understand how 100 come ?

[Cobycane]

I too am confused as to why the LCM is 21z^2 and not 21z^3? Because 3z + 7z^2 is basically, 3z + 7zz = 21zzz?

[dynamicdiggingduo]

which drawing software you use
please tell

[Smilesoul]

Umm wait so there’s two (z + 1) so doesn’t that make it (z+1)^2