Why x and 4x-10 are factors of the expression x(4x-10)^3 rather than terms of the expression.

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?