Question

what is the LCM of z^2-49 and z^2+13z+42

Answer 1

It is z+7.

See http://www.oojih.com/show/algebra/lcmgcd/ for steps and explanation; scroll down to comment section see your question.

Answer 2

Thats not right

Answer 3

well at least my assignment says that is not right

Answer 4

what does your assignment say?

Answer 5

I need one prime factor

Answer 6

so would it be 7

Answer 7

answer would be (z+7)(z-7)(z+6)

Answer 8

oh right, it is a LCM, so it is (z+6)(z-7)

Answer 9

you don't include (z+7) because it is already a factor in both polynomials.

Answer 10

I have a new equation v^2-36 and V62+13+42

Answer 11

That is solved just like the previous problem. You factor them. See my explanation above