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Question

The number of solutions to the equation ∣∣2x2−5x+3∣∣+(x−1)=0 is :

A
1
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B
2
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C
0
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D
infinite
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Solution

The correct option is B 2
2x25x+3+(x1)=0
let 2x25x+3>0 2x25x+3<0
2x25x+3+x1=0 2x2+5x3+x1=0
2x24x+2=0 2x2+6x4=0
x22x+1=0 x23x+2=0
(x1)2=0 x22xx+2=0
x=1 x(x2)1(x2)=0
x=1,2
, No. of solutions are 2 i.e 1 & 2.

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