SOLUTION: I'm having trouble simplifying the square root of (4x-y)^2. Here's what I've got so far: sqrt(4^2x^2-y^2) sqrt(16x^2-y^2) sqrt(4*4*x*x-y*y) sqrt(2*2*x*x-y*y). I'm not sure where to

Algebra ->  Square-cubic-other-roots -> SOLUTION: I'm having trouble simplifying the square root of (4x-y)^2. Here's what I've got so far: sqrt(4^2x^2-y^2) sqrt(16x^2-y^2) sqrt(4*4*x*x-y*y) sqrt(2*2*x*x-y*y). I'm not sure where to      Log On


   

Question 552280: I'm having trouble simplifying the square root of (4x-y)^2. Here's what I've got so far: sqrt(4^2x^2-y^2) sqrt(16x^2-y^2) sqrt(4*4*x*x-y*y) sqrt(2*2*x*x-y*y). I'm not sure where to go from here or if I'm even doing it correctly.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Using the idea that sqrt%28x%5E2%29=abs%28x%29 where x is any real number, we can say that sqrt%28%284x-y%29%5E2%29=abs%284x-y%29 where x and y are any real numbers.