Question

(x-1)^2 expanded form?

Answer 1

binomial theroem tell as that \[(a+b)^{2}=a ^{2}+2ab+b ^{2}\]

Answer 2

x^2+2x+1?

Answer 3

well, not quite, you are close though

Answer 4

if b is -1 then 2ab would be -2x, right?