January 2019 0 9 Report
Korzystając z odpowiedniego wzoru skróconego mnożenia oblicz:
a) (x+9)²
b) (2a + 3)²
c) (4x + 5y)²
d) (5 - b)²
e) (7x - 1)²
f) (3a - 2b)²
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