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4-2.Quadratic Equations and Inequations
hard
समीकरण $\mathrm{x}\left(\mathrm{x}^2+3|\mathrm{x}|+5|\mathrm{x}-1|+6|\mathrm{x}-2|\right)=0$ के वास्तविक हलों की संख्या है ...........
A
$5$
B
$3$
C
$4$
D
$1$
(JEE MAIN-2024)
Solution
$x=0 \text { and } x^2+3|x|+5|x-1|+6|x-2|=0$
Here all terms are $+v e$ except at $x=0$
So there is no value of $x$
Satisfies this equation
Only solution $\mathrm{x}=0$
No of solution 1 .
Standard 11
Mathematics