यदि (f(x)=x-2+2x) और (g(x)=x-2-2x) हैं तो ((f-g)(x)) क्या है?

If (f(x)=x-2+2x) and (g(x)=x-2-2x) then what is ((f-g)(x))?

Explanation opens after your attempt
Correct Answer

A. (4x)

Step 1

Concept

((f-g)(x)=x-2+2x-\(x^2-2x\)=4x). Changing signs while opening brackets is essential.

Step 2

Why this answer is correct

The correct answer is A. (4x). ((f-g)(x)=x-2+2x-\(x^2-2x\)=4x). Changing signs while opening brackets is essential.

Step 3

Exam Tip

((f-g)(x)=x-2+2x-\(x^2-2x\)=4x)। कोष्ठक खोलते समय चिन्ह बदलना आवश्यक है।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2+2x) और (g(x)=x-2-2x) हैं तो ((f-g)(x)) क्या है? / If (f(x)=x-2+2x) and (g(x)=x-2-2x) then what is ((f-g)(x))?

Correct Answer: A. (4x). Explanation: ((f-g)(x)=x-2+2x-\(x^2-2x\)=4x)। कोष्ठक खोलते समय चिन्ह बदलना आवश्यक है। / ((f-g)(x)=x-2+2x-\(x^2-2x\)=4x). Changing signs while opening brackets is essential.

Which concept should I revise for this Mathematics MCQ?

((f-g)(x)=x-2+2x-\(x^2-2x\)=4x). Changing signs while opening brackets is essential.

What exam hint can help solve this Mathematics question?

((f-g)(x)=x-2+2x-\(x^2-2x\)=4x)। कोष्ठक खोलते समय चिन्ह बदलना आवश्यक है।