Question

Find the "LCM" of z^2-4 and z^2+5z+6.

Answer 1

z^2-4 = (z-2)(z+2)


z^2+5z+6 = (z+2)(z+3)



Now collect the unique factors and multiply them out to get the LCM of


(z-2)(z+2)(z+3)



Optionally, you can expand and simplify, but it's not necessary.

Answer 2

Cool! Thank you! :)