Question

(2x+7) * (x+5) > 0 ayudenme

Answer 1

$(2x+7) * (x+5) \ \textgreater \ 0$

$\left \{ {{2x+7\ \textgreater \ 0} \atop {x+5\ \textgreater \ 0}} \right. \left \{ {{2x+7\ \textless \ 0} \atop {x+5\ \textless \ 0}} \right.$

$\left \{ {{x\ \textgreater \ - \frac{7}{2} } \atop {x\ \textgreater \ -5}} \right. \left \{ {{x\ \textless \ - \frac{7}{2} } \atop {x\ \textless \ -5}} \right.$

$x$ ∈ $(- \frac{7}{2} ,+ \infty)$

$x$ ∈ $(- \infty,-5)$

$x$ ∈ $(-\infty ,-5)$∪$(- \frac{7}{2} ,+\infty)$

Espero que te sirva. :)