यदि (x=1) और (y=3), तो (3(x+y)2-4xy) का मान क्या होगा?

If (x=1) and (y=3), what is the value of (3(x+y)2-4xy)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. (36)

Step 1

Concept

Substitution gives (3(4)2-4(1)(3)=48-12=36). Evaluate brackets and squares first.

Step 2

Why this answer is correct

The correct answer is A. (36). Substitution gives (3(4)2-4(1)(3)=48-12=36). Evaluate brackets and squares first.

Step 3

Exam Tip

मान रखने पर (3(4)2-4(1)(3)=48-12=36) मिलता है। कोष्ठक और वर्ग पहले निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि (x=1) और (y=3), तो (3(x+y)2-4xy) का मान क्या होगा? / If (x=1) and (y=3), what is the value of (3(x+y)2-4xy)?

Correct Answer: A. (36). Explanation: मान रखने पर (3(4)2-4(1)(3)=48-12=36) मिलता है। कोष्ठक और वर्ग पहले निकालें। / Substitution gives (3(4)2-4(1)(3)=48-12=36). Evaluate brackets and squares first.

Which concept should I revise for this Mathematics MCQ?

Substitution gives (3(4)2-4(1)(3)=48-12=36). Evaluate brackets and squares first.

What exam hint can help solve this Mathematics question?

मान रखने पर (3(4)2-4(1)(3)=48-12=36) मिलता है। कोष्ठक और वर्ग पहले निकालें।