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If (\alpha) and (\beta) are zeroes of (x^2-3x-2), what is ((\alpha-\beta)^2)?
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Answer and explanation
Correct answer: (17)
((\alpha-\beta)^2=(\alpha+\beta)^2-4\alpha\beta=3^2-4(-2)=17). This method gives the answer without finding the zeroes.
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What is the correct answer to this question?
(17)
Why is this the correct answer?
((\alpha-\beta)^2=(\alpha+\beta)^2-4\alpha\beta=3^2-4(-2)=17). This method gives the answer without finding the 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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