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Question

The value(s) of x for which |2x3||x+2|=4 holds true, is

A
{1,9}
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B
{1,9}
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C
{1,1}
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D
{9}
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Solution

The correct option is B {1,9}
|2x3||x+2|=4
When x<2
x+5=4
x=1 No solution

When 2x<32
3x+1=4
x=1

When x32
x5=4
x=9

x=1,9

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