решите неравенство.алгебра
[tex]4(x - 5) {}^{2} - (2x + 3) {}^{2 } > - 13[/tex]
[tex]4(x - 5) {}^{2} - (2x + 3) {}^{2 } > - 13[/tex]
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Ответ:
x < 61/14
x ∈ (-∞; 61/14)
Объяснение:
4(x-5)^2-(2x+3)^2>-13
4(x^2-10x+25)-(4x^2+12x+9)>-13
4x^2-40x+100-4x^2+12x+9+13>0
-28x+122>0
28x <122
x <61/14