Question

(a^2+2ab+b^2)-c^2 , 1-m^2-2mn-n^2, x^2-2xc+c^2-d^2 , a^2+2a-b^2+1 , x^2+2xy-m^2+y^2, c^2-a^2+2ab-b^2 , x^3-x^2y-xy^2+y^3 , c^2+2

c-d^2+2d

Answer 1

(a^2+2ab+b^2)-c^2= (а+в)^2-c^2=(a+b-c)(a+b+c) ,