Question

Solve for x. x 2 ≥ − 4

Answer 1

`(-\infty,\infty)`

Explanation:

We have been given an inequality
`x^2\geq -4`

We know that when 'n' is even for
`u^n\geq 0`, then solution is all values of u.

Since x is raised to second power, so it is even.

Therefore, the solution for our given inequality is all values of x that is
`(-\infty,\infty)`.