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a fost răspuns

1 :
(1 +x)² =
(-x-1 )² =
(x -1)² =
(2-x)² =
(3-x)²=
(x-3)²=

2 :
(x+3)²=
(-x-3)²=
(x+y)²=
(x-y)²=
(-a+9)²=
(b-7)²=
(5-x)²=

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Răspuns :

Minnylove
1:
(1+x)²=1+2x+x²
(-x-1)²=x²+2x+1
(x-1)²=x²-2x+1
(2-x)²=4-4x+x²
(3-x)²=9-6x+x²
(x-3)²=x²-6x+9
2:
(x+3)²=x²+6x+9
(-x-3)²=x²+6x+9
(x+y)²=x²+2xy+y²
(x-y)²=x²-2xy+y²
(-a+9)²=a²-18a+81
(b-7)²=b²-14b+49
(5-x)²=25-10x+x²

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