यदि (p(x)=x-2+4x+2), तो शून्यकों का सही युग्म कौन सा है?
If (p(x)=x-2+4x+2), which is the correct pair of zeroes?
Explanation opens after your attempt
Correct Answer
A. \(-2+\sqrt{2}\) और \(-2-\sqrt{2}\)\(-2+\sqrt{2}\) and \(-2-\sqrt{2}\)
Concept
By the formula, \(x=\frac{-4\pm\sqrt{16-8}}{2}=-2\pm\sqrt{2}\). Pay attention to the negative sign and denominator (2).
Why this answer is correct
The correct answer is A. \(-2+\sqrt{2}\) और \(-2-\sqrt{2}\) / \(-2+\sqrt{2}\) and \(-2-\sqrt{2}\). By the formula, \(x=\frac{-4\pm\sqrt{16-8}}{2}=-2\pm\sqrt{2}\). Pay attention to the negative sign and denominator (2).
Exam Tip
सूत्र से \(x=\frac{-4\pm\sqrt{16-8}}{2}=-2\pm\sqrt{2}\)। ऋण चिह्न और हर (2) दोनों पर ध्यान दें।
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