Question

(x 1)²
(a+5)²
(a²+1)²
(3y+2)²

Answer 1

(x 1)^2
x^2+2.x.1+1^2
x^2+2x+1
(a+5)^2
a^2+2.a.5+5^2
a^2+10a+25
(a^2+1)^2
(a^2)^2+2.(a^2).1+1^2
a^4+2a^2+1
(3y+2)^2
3y^2+2.3y.2+2^2
3y^2+12y+4