Question

resolver 3 x (4-x) > 18x + 5

Answer 1

$3(4-x)\ \textgreater \ 18x+5 \\ \\ 12-3x\ \textgreater \ 18x+5 \\ \\ -3x-18x\ \textgreater \ 5-12 \\ \\ -21x\ \textgreater \ -7 \\ \\ x\ \ \textless \ \frac{1}{3}$

Respuesta:(-∞ ; 1/3)


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