Question

|5-|2x-11||=8 va rog dau coroana

Answer 1

Pentru |5-2x|-11=8
$\big{|}5-2x\big{|}=8+11$
$\big{|}5-2x\big{|}=19$
$~~$
$5-2x=19$
$5-2x=-19$
$~~$
$x=-7$
$x=12$
$~~$
$x_{1}=\fbox{-7}$
$x_{2}=\fbox{12}$
$~~$
$~~$

Pentru |5| |2x-11| = 8
$5\cdot\big{|}2x-11\big{|}=8$
$\big{|}2x-11\big{|}=\dfrac{8}{5}$
$~~$
$2x-11=\dfrac{8}{5}$
$2x-11=-\dfrac{8}{5}$
$~~$
$x=\dfrac{63}{10}$
$x=\dfrac{47}{10}$
$~~$
$x_{1}={\dfrac{61}{10}}$
$x_{2}={\dfrac{47}{10}}$

$~~$
$~~$
Pentru |5-2x-11|=8
$\big{|}-6-2x\big{|}=8$
$~~$
$-6-2x=8$
$-6-2x=-8$
$~~$
$x=-7$
$x=1$
$~~$
$x_{1}=\fbox{-7}$
$x_{2}=\fbox{1}$






Alegi tu care e bună! Că eu nu ştiu cum ai pus modulul!