September 2018 1 24 Report
Doprowadź wyrażenie do najprostszej postaci. a) 9x (x+2) - (3x-1) (3x+1) b) (2y+5z) (2y-5z) - 5z (y-5z) c) (2a+3b)Kwadrat -4a(a-2b) + (a+b)(a-9b) d) (5y-2z) (5y+2z) + 4z (y+z) - 25y Kwadrat :)))))))

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