Question

The LCM of 21w and 9w^2 is 63w^2, correct?

Answer 1

21*9?

Answer 2

No..

Answer 3

im sorry i do not know wesh i could help peace im out

Answer 4

well, what factors does 21 have?

what about 9? what factors does it have?

do a prime factoring of them, let's see what factors they have then

Answer 5

@jdoe0001

21: 3*7
9: 3*3

3*3*7=63

Answer 6

yeap

the prime factoring shows, that 3 * 3 * 7 are it :)

Answer 7

\(21={\color{brown}{ 3}}\cdot {\color{brown}{ 7}}
\\ \quad \\
9={\color{brown}{ 3 }}\cdot 3
\\ \quad \\
LCM = {\color{brown}{ 3\cdot 3\cdot 7}}\)

since, that will include, 21, as well as 9 IN IT

Answer 8

Okay, but what about the variables?

Answer 9

@jdoe0001

Answer 10

ohhh hmmm well, you have \(w\ and\ w^2\)

it has to be \(w^2\) because that includes "w" in it :)

Answer 11

yea ik i havent i wasnt payin attention i was doing homework

Answer 12

Lol, nice.

Answer 13

dude fan me