Rewrite the function g(x) =2x-4/x-5 in the form g(x) a/x-h +k

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Which of these would have been most likely to have been a carpetbagger during the reconstruction era? a) a new york businessman who relocated to mississippi b) a former slave who was able to buy land in birmingham c) a carolina-born politician who supported the democratic d) a former confederate officer who owned a farm in memphis eliminate