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Solution of $(x+1)(x-2)\geq 0$
Option: 1
$(-\infty,-1]\cup[2,\infty)$

Option: 2
$(-\infty,-1)\cup [2,\infty )$

Option: 3
$(-1,2)$

Option: 4
$[-1,2]$

Answers (1)

best_answer

As the inequation is in standard form, we can make its sign scheme.

Roots : x = -1,2

So solution is

$(-\infty ,-1]\cup [2,\infty)$

Posted by

vishal kumar

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