Question

(2x-1)square2-(x-1)square2

Answer 1

Answer:

(2x-1)^2-(x-1)^2

[2x^2-2×2x×(-1)+(-1)^2] - [x^2-2×x×(-1)+(-1)^2]

________expand (a-b)^2

[4x^2+4x+1] - [x^2-2x-1]____change the signs according to the rule

[3x^2-6x-2] hope it helps :)