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(5a-2b)*3b+(2a-3b)(a-b)=
4x(x+y)+(x^3+xy)*3-5xy=
Prosze o kontakt na gg 37287939 dam naj
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15ab-6b²+2a²-2ab-3ab+3b²=10ab+2a²-3b²
4x²+4xy+3x³+3xy-5xy=2xy+4x²+3x³