What happens when we plug in ?
Do you get an output value of zero for every input value of x? Then how could the range, being the set of all outputs, be just the singleton set {0}?
You have a variable expression raised to an even power. What then should the graph look like? If you plug the listed x-value in, what y-value do you get out? Can you get any smaller y-values out, given the form of the graph?
What then is the range?
Look at the graph, if you're not sure....
you can think like this
y value can't be negative since the power is even so we now remove (-infinity , 0) as a range find x values that make it zero in your question y can be zero as you see from the other posts and if x become bigger y become bigger to so if x goes to infinity y goes to infinity