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B
x=±2,x=±4
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C
x=±3,x=±4
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Solution
The correct option is B x=±2,x=±4 Given x2−6|x|+8=0 ⇒(|x|)2−6|x|+8=0 ⇒(|x|)2−6|x|+8=0 ⇒(|x|−2)(|x|−4)=0 ⇒(|x|−2)=0or(|x|−4)=0 ⇒|x|=2or|x|=4 ⇒x=±2orx=±4