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If (p(x)=x^2-8x+7), how do its zeroes compare with those of (x^2-8x+10)?
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Answer and explanation
Correct answer: First are rational, second are irrational real
For the first, (D=64-28=36) is a perfect square; for the second, (D=64-40=24) is not. The discriminant quickly tells the type of zeroes.
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What is the correct answer to this question?
First are rational, second are irrational real
Why is this the correct answer?
For the first, (D=64-28=36) is a perfect square; for the second, (D=64-40=24) is not. The discriminant quickly tells the type of zeroes.
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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