यदि \(x^2+x=20\), तो \(3x^2+3x-4\) का मान क्या होगा?
If \(x^2+x=20\), what is the value of \(3x^2+3x-4\)?
Explanation opens after your attempt
A. (56)
Concept
(3x-2+3x-4=3\(x^2+x\)-4). Using the given value, (3(20)-4=56).
Why this answer is correct
The correct answer is A. (56). (3x-2+3x-4=3\(x^2+x\)-4). Using the given value, (3(20)-4=56).
Exam Tip
(3x-2+3x-4=3\(x^2+x\)-4) है। दिए मान से (3(20)-4=56)।
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