December 2018 1 16 Report
Bardzo proszę o pomoc z zadaniem na jutro.
Zamień na sumy stosując wzory skróconego mnożenia (doprowadź do najprostszej postaci)
a) (4x-7)^2
b) (4a+1/2b)^2
c) (2b-7) (2b+7)
d) (3x-5)^2 + (1/2x+3)^2
e) (2x+y) (2x-y) - (x+3y)
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