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a fost răspuns

(x+2)·(x-2)=
(2x-1)·(2x+1)=
(2x+3y)·(2x-3y)=
(x+6)·(x-6)=
(3x-7)·(3x+7)=
(x+4)·(x-4)=
(x²-1)·(x²+1)=
(4x-3)·(4x+3)=
(5x-3)·(5x+3)=

Ajutati-ma va rog mult.

Răspuns :

Armina14
1) x²-4
2) 4x²-1
3) 4x²-9y²
4)x²-36
5)9x²-49
6)x²-16
7)x⁴-1
8)16x²-9
9)25x²-9

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