Express (x-1)^2 as a trinomial in standard form

Answer 1

To expand the expression (x-1)^2, we can use the formula for squaring a binomial:

(a-b)^2 = a^2 - 2ab + b^2

In this case, a = x and b = 1. Applying the formula, we have:

(x-1)^2 = x^2 - 2(x)(1) + 1^2

Simplifying, we get:

(x-1)^2 = x^2 - 2x + 1