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Ajutati-ma va rog la descompunerea in factori..

3(x2)+9xy=
2a-2b+ca-cb=
(2-3d)la puterea 2 -49=
125a la puterea2 -8b la puterea15=
2x la puterea 2+3x-2=

Răspuns :

Beccivmihail
3x+6+9xy
2a+ca-2b-cb=
CarMina03
3x²+9xy=3x(x+3y)
2a-2b+ca-cb=a(2+c)-b(2+c)=(2+c)(a-b)
(2-3d)² -49=(2-3d)² -7²=(2-3d-7)(2-3d+7)=(-5-3d)(9-3d)
 125² -8b ¹⁵=5³-(2b⁵)³=(5-2b)(25+20b+4b²)
2x ²+3x-2=(x+2)(x-1/2)

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