यदि \(A={x\in \mathbb{Z}:x^2=4x}\) है, तो (A) और ({0,4}) के बीच क्या संबंध है?

If \(A={x\in \mathbb{Z}:x^2=4x}\), what is the relation between (A) and ({0,4})?

Explanation opens after your attempt
Correct Answer

A. \(A=\{0,4\}\)

Step 1

Concept

Write \(x^2=4x\) as \(x^2-4x=0\).

Step 2

Why this answer is correct

(x(x-4)=0), so (x=0) or (x=4).

Step 3

Exam Tip

Do not forget to check zero as a possible solution. चरण 1: \(x^2=4x\) को \(x^2-4x=0\) लिखें। चरण 2: (x(x-4)=0), इसलिए (x=0) या (x=4)। चरण 3: शून्य को हल के रूप में अलग से जाँचना न भूलें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A={x\in \mathbb{Z}:x^2=4x}\) है, तो (A) और ({0,4}) के बीच क्या संबंध है? / If \(A={x\in \mathbb{Z}:x^2=4x}\), what is the relation between (A) and ({0,4})?

Correct Answer: A. \(A=\{0,4\}\). Explanation: चरण 1: \(x^2=4x\) को \(x^2-4x=0\) लिखें। चरण 2: (x(x-4)=0), इसलिए (x=0) या (x=4)। चरण 3: शून्य को हल के रूप में अलग से जाँचना न भूलें। / Step 1: Write \(x^2=4x\) as \(x^2-4x=0\). Step 2: (x(x-4)=0), so (x=0) or (x=4). Step 3: Do not forget to check zero as a possible solution.

Which concept should I revise for this Mathematics MCQ?

Write \(x^2=4x\) as \(x^2-4x=0\).

What exam hint can help solve this Mathematics question?

Do not forget to check zero as a possible solution. चरण 1: \(x^2=4x\) को \(x^2-4x=0\) लिखें। चरण 2: (x(x-4)=0), इसलिए (x=0) या (x=4)। चरण 3: शून्य को हल के रूप में अलग से जाँचना न भूलें।