SOLUTION: Can you help me solve this problem: Kim and Stefan both factor the equation x^2-4=0 Kim thinks that the root 2 has multiplicity 2, but Stefan thinks the root 2 has multiplici

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can you help me solve this problem: Kim and Stefan both factor the equation x^2-4=0 Kim thinks that the root 2 has multiplicity 2, but Stefan thinks the root 2 has multiplici      Log On


   

Question 167101: Can you help me solve this problem:
Kim and Stefan both factor the equation x^2-4=0
Kim thinks that the root 2 has multiplicity 2, but Stefan thinks the root 2 has multiplicity 1
Who is correct? How do you know?
THANK YOU SO MUCH
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
x%5E2-4+=+0 Add 4 to both sides.
x%5E2+=+4 Take the square root of both sides.
highlight%28x+=+2%29 or highlight%28x+=+-2%29
There is no "root 2" in the solution!