यदि (x=3), तो (2x(x-5)+4x-2) का मान क्या होगा?
If (x=3), what is the value of (2x(x-5)+4x-2)?
Explanation opens after your attempt
B. (24)
Concept
First simplify (2x(x-5)+4x-2=6x-2-10x). Substituting (x=3) gives (54-30=24).
Why this answer is correct
The correct answer is B. (24). First simplify (2x(x-5)+4x-2=6x-2-10x). Substituting (x=3) gives (54-30=24).
Exam Tip
पहले सरल करें (2x(x-5)+4x-2=6x-2-10x)। (x=3) रखने पर (54-30=24)।
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