Question

what is the LCM of (x+3)and (x^2-9)

Answer 1

Factorize the (x^2 - 9) first..

Answer 2

\(x^2 - 9 = (x + 3)(x - 3)\)

Answer 3

\[(a^2 - b^2) = (a+b)(a-b)\]

Answer 4

(x+3)(x-3)

Answer 5

\(x + 3\), \((x + 3)(x - 3)\).
Now it's just oral.

Answer 6

Now take the LCM..

One common factor and one non common factor will be the LCM..

Answer 7

The common factor is \(x + 3\).
The factors that are not common = LCM.

Answer 8

I mean, common * uncommon

Answer 9

(x+3)(x-3)??

Answer 10

Well Done..

Answer 11

THANKS!!

Answer 12

That's right!

Answer 13

Welcome dear..

Answer 14

:)

Answer 15

\(x + 3 \times x - 3 = x^2 - 9\)
\(x^2 - 9 \times 1 = x^2 - 9\)
Confirmed

Answer 16

lcm is the common tern in 2 equations
(a2−b2)=(a+b)(a−b)
x2−9=(x+3)(x−3)
now common terms of (x+3)and (x^2-9)

common terms of (x+3)and (x+3)(x−3)
is the lcm