Question

least common multiple of x^2-9x & x^2+9x

Answer 1

What are the factors of x^2-9x?

Answer 2

x(x-9)

Answer 3

yes. What are the factors of x^2+9x?

Answer 4

x(x+9)

Answer 5

Yes. How many DIFFERENT factors are there?

Answer 6

there are 3; x, (x-9), & (x+9)

Answer 7

Good. Let's start with the first one...x What is the largest power of x?

Answer 8

1, i think?

Answer 9

Good. that will be a factor of the LCM. Now the next factor. What is the largest power of (x-9)?

Answer 10

Is the LCM x(x-9)(x+9)
?

Answer 11

Yes it is. You are so smart its scary.

Answer 12

Okay, I had an idea, but I wasn't completely positive. Thank you!!! :D

Answer 13

THANK YOU VERY MUCH!!!!

Answer 14

yw