यदि (f(x)=x-2) और (g(x)=x+2) हों, तो ((fg)(x)+4) किसके बराबर है?

If (f(x)=x-2) and (g(x)=x+2), what is ((fg)(x)+4) equal to?

Explanation opens after your attempt
Correct Answer

A. \(x^2\)

Step 1

Concept

((fg)(x)=(x-2)(x+2)=x-2-4), so ((fg)(x)+4=x-2). Use the difference of squares identity.

Step 2

Why this answer is correct

The correct answer is A. \(x^2\). ((fg)(x)=(x-2)(x+2)=x-2-4), so ((fg)(x)+4=x-2). Use the difference of squares identity.

Step 3

Exam Tip

((fg)(x)=(x-2)(x+2)=x-2-4), इसलिए ((fg)(x)+4=x-2)। difference of squares का उपयोग करें।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2) और (g(x)=x+2) हों, तो ((fg)(x)+4) किसके बराबर है? / If (f(x)=x-2) and (g(x)=x+2), what is ((fg)(x)+4) equal to?

Correct Answer: A. \(x^2\). Explanation: ((fg)(x)=(x-2)(x+2)=x-2-4), इसलिए ((fg)(x)+4=x-2)। difference of squares का उपयोग करें। / ((fg)(x)=(x-2)(x+2)=x-2-4), so ((fg)(x)+4=x-2). Use the difference of squares identity.

Which concept should I revise for this Mathematics MCQ?

((fg)(x)=(x-2)(x+2)=x-2-4), so ((fg)(x)+4=x-2). Use the difference of squares identity.

What exam hint can help solve this Mathematics question?

((fg)(x)=(x-2)(x+2)=x-2-4), इसलिए ((fg)(x)+4=x-2)। difference of squares का उपयोग करें।