Answer:
False.
is not a Linear expression.
Explanation:
Given:

we need to find whether it is a linear expression or not.
By Definition of Linear expression we say,
Linear expression is an algebraic expression where the power of variable(s) is equals to 1
Or we can say that:
Polynomial having power of variable(s) as 1, is known as Linear Expression
In the above expression the power of variable is 2 hence it is not a linear expression.
Hence the statement is False, the
is not a Linear expression.