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Adinaadina2
a fost răspuns

(7/2 - 7/5) la 2 × 2/7 - (2/5 - 3/10) la 2 = ?
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Răspuns :

Alexandravert
(35/10-14/10)² *2/7-(4/10-3/10)²=
=(21/10)² *2/7-(1/10)²=
=441/100*2/7-1/100
=63/50-1/100=
=125/100=
=5/4=
=1,25
Damnit
(35/10-14/10)^2×2^7-(4/10-3/10)^2= (21/10)^2×2/7-(1/10)2=441/100×2/7-1/100=63/50-1/100= 126/100-1/100=125/100=5/4

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