व्यंजक (15-[4x-3(2-x)]) का सरल रूप क्या है?
What is the simplified form of (15-[4x-3(2-x)])?
Explanation opens after your attempt
B. (21-7x)
Concept
Inside (4x-6+3x=7x-6), so (15-(7x-6)=21-7x). Apply the outside minus sign to the whole bracket.
Why this answer is correct
The correct answer is B. (21-7x). Inside (4x-6+3x=7x-6), so (15-(7x-6)=21-7x). Apply the outside minus sign to the whole bracket.
Exam Tip
अंदर (4x-6+3x=7x-6), इसलिए (15-(7x-6)=21-7x)। बाहर का ऋण चिह्न पूरे कोष्ठक पर लागू करें।
Login to save your score, XP, coins and progress.
