Question

Can sumone help me with this polynomial problem:

Which of the following is the LCM of the polynomials?
(x^2 + 10x + 9) and (x^2 - 1)

A. (x + 1)
B. (x + 1)( x + 9)
C. (x + 1)(x - 1)
D. (x + 1)(x - 1)(x + 9)

Answer 1

x^2+x+9x+9 = x(x+1)+9(x+1) = (x+9)(x+1)
x^2-1 = (x+1)(x-1)
hence the answer is a) (x+1)

Answer 2

oh sorry the answer is D) (x+1)(x-1)(x+9) i have to find lcm forgot :0

Answer 3

http://www.wolframalpha.com/input/?i=LCM+of+%28x%5E2%2B10x%2B9%29+and+%28x%5E2-1%29

Answer 4

my answer is correct

Answer 5

LCM of (x^2 + 10x +9) = (x+9)(x+1)
LCM of (x^2 - 1) = (x + 1)(x - !)
Hence, the LCM of both of them is (x + 1) (x - 1) (x + 9)

Answer 6

okay thnk u guys very much.

Answer 7

You are most welcome dear

Answer 8

I like u rprofile pic lol

Answer 9

Thank You