Question

Помогите решить.
c^2-0,25
x^2-8x+16
(a-5)^2-(a+5)^2

Answer 1

$a) c^2-0.25=(c-0.5)(c+0.5)\ b) x^2-8x+16=(x-4)^2\ c) (a-5)^2-(a+5)^2=(a-5-a-5)(a-5+a+5)=-50a$