August 2018 1 67 Report
Oblicz wartość liczbową wyrażenia :

a) 4x - (x+6) + 4 dla x= 1/3 (jedna trzecia)
b)(x² + 1) - (x² - 2) + 10 dla x = 2,2
c) (a + 4b) - (5 + 2a) - (3b - 5) dla a= -0,1 i b= 0,2
d) (-a² + 2ab - 1) + ( a² - 4ab +5) dla a= 1/4 (jedna czwarta) i b=2.
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