January 2019 2 20 Report
Zadanie z matematyki. Proszę na jutro.
2x-y(x+1)+xy= dla x=-2 i y=5

(m+n)(n-2)(2m+3n)= dla m=-1 i n=-7

1+x(x+4)= dla x=-12

Daję 30 pkt :)
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