February 2019 0 12 Report
Dane są wyrażenia A i B. Wyznacz sumę A + B oraz różnicę A - B.
a) A = x, B = - 6x + 4
b) A =8, B = -(4y + 5)
c) A = a² – 4, B = 8 – a²
d) A = 2x – y, B= -(x –2y)
e) A = -(2a – B), B= 2a + b
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