व्यंजक (5(a-2)-2(a+1)) का सरल रूप क्या है?
What is the simplified form of (5(a-2)-2(a+1))?
Explanation opens after your attempt
A. (3a-12)
Concept
On expanding, (5a-10-2a-2=3a-12). Apply the negative sign to the whole bracket.
Why this answer is correct
The correct answer is A. (3a-12). On expanding, (5a-10-2a-2=3a-12). Apply the negative sign to the whole bracket.
Exam Tip
खोलने पर (5a-10-2a-2=3a-12) मिलता है। ऋण चिह्न को पूरे कोष्ठक पर लागू करें।
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