यदि (f(x)=x-2-3x), तो (f(x+2)-f(x)) क्या होगा?

If (f(x)=x-2-3x), what is (f(x+2)-f(x))?

Explanation opens after your attempt
Correct Answer

A. (4x-2)

Step 1

Concept

Write (f(x+2)=(x+2)2-3(x+2)).

Step 2

Why this answer is correct

Simplifying gives \(x^2+x-2\).

Step 3

Exam Tip

Now (x-2+x-2-\(x^2-3x\)=4x-2). चरण 1: (f(x+2)=(x+2)2-3(x+2)) लिखें। चरण 2: सरल करने पर \(x^2+x-2\) मिलता है। चरण 3: अब (x-2+x-2-\(x^2-3x\)=4x-2)।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2-3x), तो (f(x+2)-f(x)) क्या होगा? / If (f(x)=x-2-3x), what is (f(x+2)-f(x))?

Correct Answer: A. (4x-2). Explanation: चरण 1: (f(x+2)=(x+2)2-3(x+2)) लिखें। चरण 2: सरल करने पर \(x^2+x-2\) मिलता है। चरण 3: अब (x-2+x-2-\(x^2-3x\)=4x-2)। / Step 1: Write (f(x+2)=(x+2)2-3(x+2)). Step 2: Simplifying gives \(x^2+x-2\). Step 3: Now (x-2+x-2-\(x^2-3x\)=4x-2).

Which concept should I revise for this Mathematics MCQ?

Write (f(x+2)=(x+2)2-3(x+2)).

What exam hint can help solve this Mathematics question?

Now (x-2+x-2-\(x^2-3x\)=4x-2). चरण 1: (f(x+2)=(x+2)2-3(x+2)) लिखें। चरण 2: सरल करने पर \(x^2+x-2\) मिलता है। चरण 3: अब (x-2+x-2-\(x^2-3x\)=4x-2)।