((x+9)(x-9)) का सरल रूप क्या है?

What is the simplified form of ((x+9)(x-9))?

Explanation opens after your attempt
Correct Answer

A. \(x^2-81\)

Step 1

Concept

This is of the form ((a+b)(a-b)=a-2-b-2). Therefore the answer is \(x^2-81\).

Step 2

Why this answer is correct

The correct answer is A. \(x^2-81\). This is of the form ((a+b)(a-b)=a-2-b-2). Therefore the answer is \(x^2-81\).

Step 3

Exam Tip

यह ((a+b)(a-b)=a-2-b-2) का रूप है। इसलिए उत्तर \(x^2-81\) है।

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Mathematics Answer, Explanation and Revision Hints

((x+9)(x-9)) का सरल रूप क्या है? / What is the simplified form of ((x+9)(x-9))?

Correct Answer: A. \(x^2-81\). Explanation: यह ((a+b)(a-b)=a-2-b-2) का रूप है। इसलिए उत्तर \(x^2-81\) है। / This is of the form ((a+b)(a-b)=a-2-b-2). Therefore the answer is \(x^2-81\).

Which concept should I revise for this Mathematics MCQ?

This is of the form ((a+b)(a-b)=a-2-b-2). Therefore the answer is \(x^2-81\).

What exam hint can help solve this Mathematics question?

यह ((a+b)(a-b)=a-2-b-2) का रूप है। इसलिए उत्तर \(x^2-81\) है।