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)

Ineed an answer asap. which is not a reason for the “era of good feeling”? a) economy in the us was booming. b) the united states was victorious in the war of 1812. c) the united states outlawed slavery. d) the federalist party was disbanded and the united states had one political party.