Answer:
The correct option is 1.
Step-by-step explanation:
The given expression is
\(k^2-16h^2\)
It can be rewritten as
\(k^2-(4h)^2\) .... (1)
The formula for difference of squares:
\(a^2-b^2=(a-b)(a+b)\)
In equation (1), a=h and b=4h. Using the above formula we get
\(k^2-(4h)^2=(k-4h)(k+4h)\)
The factor form of given expression is (k-4h)(k+4h). Therefore the correct option is 1.
