Question 1141444


{{{(x+5)(x-2)(x-7)<=0 }}}

solutions:

{{{(x+5)<=0 }}}=>{{{x<=-5 }}}
{{{(x-2)<=0 }}}=>{{{x<=2 }}}
{{{(x-7)<=0 }}}=>{{{x<=7 }}}

=> 

{{{2<=x<=7}}}
or
{{{x<=-5 }}}


interval notation:

[{{{2}}},{{{ 7}}}]

({{{-infinity}}},{{{ -5}}}]


number line:

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so, your answer is: 

D.{{{x<=-5 }}} or {{{2<=x<=7}}}