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If (p(x)=x^2+2\sqrt{7}x+6), what are its zeroes?
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Answer and explanation
Correct answer: (-\sqrt{7}+1) and (-\sqrt{7}-1)
Using the formula, (x=\frac{-2\sqrt{7}\pm2}{2}=-\sqrt{7}\pm1). Simplifying the discriminant first gives a clean answer.
Frequently asked questions
What is the correct answer to this question?
(-\sqrt{7}+1) and (-\sqrt{7}-1)
Why is this the correct answer?
Using the formula, (x=\frac{-2\sqrt{7}\pm2}{2}=-\sqrt{7}\pm1). Simplifying the discriminant first gives a clean answer.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Irrational numbers and real numbers.
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