Mathematics
Senior High

2行目から3行目に行くのにどうなってるのかわかりません。

25(1) x-1+2(x-1) = (x-1)+2(x-1)? 6) = (x-1){1+2(x-1)} = (x-1)(2.x-1)

Answers

No answer yet

Were you able to resolve your confusion?