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If (p(x)) is a quadratic polynomial with rational coefficients and one zero is (2+\sqrt{7}), what will be the other zero?
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Answer and explanation
Correct answer: (2-\sqrt{7})
With rational coefficients, (a+\sqrt{b}) is accompanied by (a-\sqrt{b}). In exams identify conjugate zeroes quickly.
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What is the correct answer to this question?
(2-\sqrt{7})
Why is this the correct answer?
With rational coefficients, (a+\sqrt{b}) is accompanied by (a-\sqrt{b}). In exams identify conjugate zeroes quickly.
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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