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Please explain the last three steps in the solution shown in the attached image.

Please explain the last three steps in the solution shown in the attached image.

Question Image
Grade:10

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

Its an inverted parabola and the second condition is of the discriminant

further steps will now be clear to you

Regards
Vikas TU
14149 Points
one year ago
Dear student 
Please ask single question in a thread , 
It will be easier for us to ans. 
Good Luck 
Cheers 

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