यदि \(x=\sqrt{5}\), तो \(x^2+3x\) किसके बराबर है?

If \(x=\sqrt{5}\), what is \(x^2+3x\) equal to?

Explanation opens after your attempt
Correct Answer

A. \(5+3\sqrt{5}\)

Step 1

Concept

(x-2=\(\sqrt{5}\)2=5).

Step 2

Why this answer is correct

\(3x=3\sqrt{5}\), so \(x^2+3x=5+3\sqrt{5}\).

Step 3

Exam Tip

Simplify the square and the multiplication separately. चरण 1: (x-2=\(\sqrt{5}\)2=5)। चरण 2: \(3x=3\sqrt{5}\), इसलिए \(x^2+3x=5+3\sqrt{5}\)। चरण 3: वर्ग और गुणा को अलग-अलग सरल करें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(x=\sqrt{5}\), तो \(x^2+3x\) किसके बराबर है? / If \(x=\sqrt{5}\), what is \(x^2+3x\) equal to?

Correct Answer: A. \(5+3\sqrt{5}\). Explanation: चरण 1: (x-2=\(\sqrt{5}\)2=5)। चरण 2: \(3x=3\sqrt{5}\), इसलिए \(x^2+3x=5+3\sqrt{5}\)। चरण 3: वर्ग और गुणा को अलग-अलग सरल करें। / Step 1: (x-2=\(\sqrt{5}\)2=5). Step 2: \(3x=3\sqrt{5}\), so \(x^2+3x=5+3\sqrt{5}\). Step 3: Simplify the square and the multiplication separately.

Which concept should I revise for this Mathematics MCQ?

(x-2=\(\sqrt{5}\)2=5).

What exam hint can help solve this Mathematics question?

Simplify the square and the multiplication separately. चरण 1: (x-2=\(\sqrt{5}\)2=5)। चरण 2: \(3x=3\sqrt{5}\), इसलिए \(x^2+3x=5+3\sqrt{5}\)। चरण 3: वर्ग और गुणा को अलग-अलग सरल करें।