यदि (f(x)=x-3) और (g(x)=x) हों, तो ((f-g)(x)) किस रूप में लिखा जा सकता है?

If (f(x)=x-3) and (g(x)=x), how can ((f-g)(x)) be written?

Explanation opens after your attempt
Correct Answer

A. (x(x-1)(x+1))

Step 1

Concept

((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1)). Use the difference of squares identity.

Step 2

Why this answer is correct

The correct answer is A. (x(x-1)(x+1)). ((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1)). Use the difference of squares identity.

Step 3

Exam Tip

((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1))। अंतर वर्ग पहचान का उपयोग करें।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-3) और (g(x)=x) हों, तो ((f-g)(x)) किस रूप में लिखा जा सकता है? / If (f(x)=x-3) and (g(x)=x), how can ((f-g)(x)) be written?

Correct Answer: A. (x(x-1)(x+1)). Explanation: ((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1))। अंतर वर्ग पहचान का उपयोग करें। / ((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1)). Use the difference of squares identity.

Which concept should I revise for this Mathematics MCQ?

((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1)). Use the difference of squares identity.

What exam hint can help solve this Mathematics question?

((f-g)(x)=x-3-x=x\(x^2-1\)=x(x-1)(x+1))। अंतर वर्ग पहचान का उपयोग करें।