SOLUTION: Hi! How would you solve log base 2 of x + log base 2 of (x+3) = 2? Thanks for your help!!!

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Hi! How would you solve log base 2 of x + log base 2 of (x+3) = 2? Thanks for your help!!!      Log On


   

Question 613765: Hi! How would you solve log base 2 of x + log base 2 of (x+3) = 2?
Thanks for your help!!!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x(x + 3) = 2^2

x^2 + 3x - 4 = 0

(x + 4)(x - 1) = 0


FYI : logarithms are not defined for negative arguments