Hmm, I tried with my calculator at least twice to get the wrong answer, and now when I try I get it right. I was just sort of wondering what's the order of operations (if that's even the right term) to solving this. Just say that x=1. Do you simplify the first bracket then multiply by the next or something else.
Sorry for being a nuisance.
u can just type the whole thing in the calculator at once, just make sure u have brackets, so for x=1, just type
(3x1-1)(1-2)^4 and you'll get the correct answer
similarly, for the x=2/3, u shud type
(3x2/3-1)(2/3-2)^4
for that one u cud either use the divide sign or the fraction sign, but u have to be careful for the divide sign for some questions
also if ur worried about calculator work, u cud split it up and solve it in two turns,
so u cud go 3x2/3-1=1 and then do 2/3-2=-4/3 Ans^4=3 13/81 and then u multiply both parts together, 3 and 13/81 times 1=3 13/81