Question

find the LCM
z^2 - 36 and z^2 + 7z + 6

Answer 1

Z^2-36=z^2-6^2 =(z-6)(z+6)

z^2+7z+6 =(z+1)(z+6)

So what's the LCM ?

Answer 2

Not sure if you're there :)
LCM[ (z-6)(z+6) , (z+1)(z+6) ] = (z-6)(z+6)(z+1)

Answer 3

Let me know if anything is unclear.