решите систему уравнений:
[tex]2^{log_{2}(x+y+1)} =x^{2}+y-1 [/tex]
[tex]log_{ \sqrt{29} } (y^{2} +2x)=2 [/tex]
подробное решение
ответ (2;5] (-1;[tex] \sqrt{31} [/tex] )
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