- #1
Einstein's Cat
- 182
- 2
Let's say there's an equation
0 = √x - √x
I intend to make x the subject of the equation; however because it is a square root, there are numerous solutions; however can I just assume that
0= √x - -√x= 2√x
Can I now just rearrange this equation to make x the subject? In other words is the equation above equivalent to the equation below?
0= -√x -√x = -2√x
Would the same be true if there were roots in a quadratic equation?
0 = √x - √x
I intend to make x the subject of the equation; however because it is a square root, there are numerous solutions; however can I just assume that
0= √x - -√x= 2√x
Can I now just rearrange this equation to make x the subject? In other words is the equation above equivalent to the equation below?
0= -√x -√x = -2√x
Would the same be true if there were roots in a quadratic equation?