Question

The square root of (-2x)^2 for which values of x does the expression makes sense?

Answer 1

Answer:
`x\leq 0`

Explanation:

The first thing we need to do is to make the argument or the number inside the square root equal or larger than zero:

-2x ≥ 0

x ≤ 0/-2

x ≤ 0

So the given expression only makes sense for x that is less than or equal to zero.