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VIVEK SINGH Grade: 11
        

the number of real solution of the equation


|x|^2 - 3|x| + 2 = 0 is


1. 4


2. 1


3. 3


4. 2

7 years ago

Answers : (1)

Rishabh Jain
17 Points
										

for x≥0


x2-3x+2=0 comparing with ax2+bx+c=0,


discriminant>0


=>it has 2 real solutions


now for x≤0


x2+3x+2=0


similarly, it has also 2 solutions


total sol.=4

7 years ago
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