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Matematyka wokół nas 1. Zeszyt ćwiczeń cz. 2 - ukr

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Policzmy to razem 1

A. 5x−2=−5x−2 5x+5x=−2+2 10x=0 x=0 B.  5x+1=5x−2

I.&nbsp; 7x−5=3x−1 7x−3x=−1+5 4x=4/:4 x=1

x+4(x−1)(x+3)​=0/⋅(x+4),x=−4

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