Meant to put it on math but clicked history

a function is shown: f(x) = 36x2 − 1.

choose the equivalent function that best shows the x-intercepts on the graph.

f(x) = 18(x2 − 1)

f(x) = (18x + 1)(18x − 1)

f(x) = 6(x2 + 1)

f(x) = (6x + 1)(6x − 1)

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people