यदि (3x-2=10), तो \(x^2+x\) का मान क्या होगा?
If (3x-2=10), what is the value of \(x^2+x\)?
Explanation opens after your attempt
B. (20)
Concept
From (3x=12), (x=4). Therefore \(x^2+x=16+4=20\).
Why this answer is correct
The correct answer is B. (20). From (3x=12), (x=4). Therefore \(x^2+x=16+4=20\).
Exam Tip
(3x=12) से (x=4) है। इसलिए \(x^2+x=16+4=20\)।
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