Q.

Number of integers satisfying the equation |x2+5x|+|xx2|=|6x| is .......

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answer is 7.

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Detailed Solution

 |x|+|y|=|x+y|x,y should have same sign.
Case (i): x0,y0 
x2+5x0 and xx20 
x(x+5)0 and x(1x)0 
x(x+5)0 and x(x1)0 
x(,5][0,)&x[0,1] 
x=0,1 
Case: (ii): x0&y0 
x2+5x0 and xx20 
x[5,0] and x(,0][1,] 
x=5,4,3,2,1,0,1 
So total 7 distinct integral values of x.

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