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If (x^2-2rx+r^2-s^2=0), what are its roots?
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Answer and explanation
Correct answer: (x=r+s,r-s)
It is ((x-r)^2-s^2=0), so (x-r=\pm s) and (x=r\pm s). In exams, quickly recognize the difference of squares.
Frequently asked questions
What is the correct answer to this question?
(x=r+s,r-s)
Why is this the correct answer?
It is ((x-r)^2-s^2=0), so (x-r=\pm s) and (x=r\pm s). In exams, quickly recognize the difference of squares.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Methods of Solving Quadratic Equations.
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