September 2018 2 9 Report

PILNE. DO DZIŚ POTRZEBUJĘ.

Doprowadź do najprostszej postaci.

a) 3(a+2b-3c) +7 (2a-4b+5c) -5 (-3a-4b-5c)

b) -4(-2x+6y+5z) -8 (9x+8y-7z) +5 (3x-6y+9z)

c) dwie trzecie (3a+6b-12c) +trzy piąte (10a-15b+20c)- 0,5(16a+24b-36c)


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