Question

Calculeaza:
(X+1) la puterea a 2
(1+x) la puterea a 2
(-x-1) la puterea a 2
(X-1) la puterea a 2
(1-x) la puterea a 2
(3-x) la puterea a 2
(X-3) la puterea a 2
(X+3) la puterea a 2
(-x-3) la puterea a 2
(X-3) la puterea a 2
(X+y) la puterea a 2
(X-y) la puterea a 2
(-a + 9) la puterea a 2
(b-7) la puterea a 2
(5-x) la puterea a 2
(a+2) la puterea a 2
(2x+5) la puterea a 2
(3x-1) la puterea a 2
(-x-7) la puterea a 2
(5x-7) la puterea a 2
(3a-2b) la puterea a 2
(-y+7) la puterea a 2
(-x+4) la puterea a 2
(1-a la a 2) la puterea a 2
(4-3b) la puterea a 2
(2a-b) la puterea a 2
(6a-3) la puterea a 2
Cat mai repede va rog....Mulțumesc.

Answer 1

(x+1) la patrat = X la patrat + 2x + 1
(1+x) la patrat = 1 +2x + X la patrat 
(-x-1) la patrat = X la patrat - 2x +1 
(1-x) la patrat = 1 - 2x- X la patrat
(3-x)la patrat = 9 - 6x + x la patrat 
(x-3) la patrat = x la patrat - 6x + 9