CBSE Class 11-science Answered
Please solve all of these questions with proper explanation
![question image](http://images.topperlearning.com/topper/new-ate/top_mob16283348905019705440939bf37-9559-4bff-820c-960106c57842.jpg)
Asked by Suchismitasingha18 | 07 Aug, 2021, 16:44: PM
Problem B:
Find all x belonging to R that solve this equation ![123 equals x times open parentheses 2 x times open curly brackets 3 x minus 3 close curly brackets minus 2 close parentheses plus 100 plus 20 plus 3](https://images.topperlearning.com/topper/tinymce/cache/d95f8048ff70543d4f716bb7946a23ff.png)
![123 equals x times open parentheses 2 x times open curly brackets 3 x minus 3 close curly brackets minus 2 close parentheses plus 100 plus 20 plus 3](https://images.topperlearning.com/topper/tinymce/cache/d95f8048ff70543d4f716bb7946a23ff.png)
Solution:
![123 equals x times open parentheses 2 x times open curly brackets 3 x minus 3 close curly brackets minus 2 close parentheses plus 100 plus 20 plus 3
rightwards double arrow 123 equals x times open parentheses 6 x squared minus 6 x minus 2 close parentheses plus 123
rightwards double arrow x times open parentheses 6 x squared minus 6 x minus 2 close parentheses equals 0
rightwards double arrow x equals 0 space space o r space space 6 x squared minus 6 x minus 2 equals 0
rightwards double arrow x equals 0 space space o r space space 3 x squared minus 3 x minus 1 equals 0
rightwards double arrow x equals 0 space space o r space space x equals fraction numerator 3 plus-or-minus square root of 9 plus 12 end root over denominator 6 end fraction
rightwards double arrow x equals 0 space space o r space space x equals fraction numerator 3 plus-or-minus square root of 21 over denominator 6 end fraction](https://images.topperlearning.com/topper/tinymce/cache/1d9c66bff3e8c0cc0ac2c6438567ec71.png)
Answered by Renu Varma | 11 Aug, 2021, 13:27: PM
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