Хееелп ,кто умный мне вас
R1ceWithM3at
1
09.04.2020 00:47
0
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2
Sквадрата=(3a)^2=9a^2
3^2+6a+a^2=Sквадрата
9а^2=9+6a+a^2
8a^a-6a-9=0
D=324
a1=3 a2=-1.5 (не соответствует условию)
a=3
3+3=6 (Сторона квадрата)