January 2019 1 4 Report
Sprawdź,czy podana równość jest prawdziwa.
a) (2+3)²=5*5
b 3²+4²=7²
c 4²:2²=1-5+8
d 3²-1²=4²-2*2²
e 2*5²:5=2*(5:5+5)
f 3²*(2²-3)=6²-3²
pomocy daje naj i dzięki
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