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

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

Explanation opens after your attempt
Correct Answer

A. (-4)

Step 1

Concept

(f(-2)=(-2)2+3(-2)-2=-4). In exams use brackets while substituting a negative input.

Step 2

Why this answer is correct

The correct answer is A. (-4). (f(-2)=(-2)2+3(-2)-2=-4). In exams use brackets while substituting a negative input.

Step 3

Exam Tip

(f(-2)=(-2)2+3(-2)-2=-4) है। परीक्षा में ऋणात्मक input डालते समय brackets लगाएं।

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Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: A. (-4). Explanation: (f(-2)=(-2)2+3(-2)-2=-4) है। परीक्षा में ऋणात्मक input डालते समय brackets लगाएं। / (f(-2)=(-2)2+3(-2)-2=-4). In exams use brackets while substituting a negative input.

Which concept should I revise for this Mathematics MCQ?

(f(-2)=(-2)2+3(-2)-2=-4). In exams use brackets while substituting a negative input.

What exam hint can help solve this Mathematics question?

(f(-2)=(-2)2+3(-2)-2=-4) है। परीक्षा में ऋणात्मक input डालते समय brackets लगाएं।