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und 10 Idelom.
1. xy-2x =
2. 5x - 10x²=
3. 15 x³y² + 9 x² y³=
4. 45a³b⁴c⁵+ 30a⁴b³c³ - 15a²b³c²=
5. 4(2x+3) - X(2x+3) =
6. 3(x-1)²-2x(x-1) =
7. (2x+3)(3x+5) + (2x+3)(3x+1)
=



Răspuns :

Răspuns:

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