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Question

The number of real solutions of the equation, x2|x|12=0 is

A
4
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B
2
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C
1
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D
3
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Solution

The correct option is B 2
Given: x2|x|12=0
x24|x|+3|x|12=0
(|x|4)(|x|+3)=0
|x|=4 or |x|=3 (rejected)
x=±4
Number of solutions =2

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