Question

LCM 5x-25, x-5.....

Answer 1

X-5?

Answer 2

You can find the LCM if you can't factor by writing out the multiples:

x-5 2x-10 3x-15 4x-20 5x-25 6x-30 7x-35 etc.
5x-25 10x-50 15x-75

Look at the list and find the first thing that appears in all of them. In this case, that is?

Answer 3

X-25?

Answer 4

Close. I don't see x-25 in either list.

Answer 5

X-5

Answer 6

Do you see x-5 in the list that starts with 5x-25?

Answer 7

It's just like finding the LCM of 3 and 7:

3 6 9 12 15 18 21 24 27 30 33 36 etc.
7 14 21 28 35 42 etc.
The first number that appears in both lists is the LCM. In this problem, it is 21. Do you see how I got that?

Answer 8

Yes.

Answer 9

So 5x-25 is the first thing that appears in both the x-5 and 5x-25 lists of multiples...

Answer 10

5x-25, x-5
5(x-5) , x-5
what is common in both these expressions??

Answer 11

X-5

Answer 12

ans what is non common

Answer 13

*and

Answer 14

25?

Answer 15

ok look here