व्यंजक (15-[4x-3(2-x)]) का सरल रूप क्या है?

What is the simplified form of (15-[4x-3(2-x)])?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (21-7x)

Step 1

Concept

Inside (4x-6+3x=7x-6), so (15-(7x-6)=21-7x). Apply the outside minus sign to the whole bracket.

Step 2

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.

Step 3

Exam Tip

अंदर (4x-6+3x=7x-6), इसलिए (15-(7x-6)=21-7x)। बाहर का ऋण चिह्न पूरे कोष्ठक पर लागू करें।

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Mathematics Answer, Explanation and Revision Hints

व्यंजक (15-[4x-3(2-x)]) का सरल रूप क्या है? / What is the simplified form of (15-[4x-3(2-x)])?

Correct Answer: B. (21-7x). Explanation: अंदर (4x-6+3x=7x-6), इसलिए (15-(7x-6)=21-7x)। बाहर का ऋण चिह्न पूरे कोष्ठक पर लागू करें। / Inside (4x-6+3x=7x-6), so (15-(7x-6)=21-7x). Apply the outside minus sign to the whole bracket.

Which concept should I revise for this Mathematics MCQ?

Inside (4x-6+3x=7x-6), so (15-(7x-6)=21-7x). Apply the outside minus sign to the whole bracket.

What exam hint can help solve this Mathematics question?

अंदर (4x-6+3x=7x-6), इसलिए (15-(7x-6)=21-7x)। बाहर का ऋण चिह्न पूरे कोष्ठक पर लागू करें।