1) (a+2)²=a²+4a+4.
2) (6-x)²=36-12x+x².
3) (6x-1/3y)²= 36x²-4xy+1/9y².
4) (n²+1)²=n⁴+2n²+1.
1) a^2+4a+4
2)x^2-12x+36
3)
4)n^4+2n^2+1
1) (a+2)²=a²+4a+4.
2) (6-x)²=36-12x+x².
3) (6x-1/3y)²= 36x²-4xy+1/9y².
4) (n²+1)²=n⁴+2n²+1.
1) a^2+4a+4
2)x^2-12x+36
3)
4)n^4+2n^2+1