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Which identity directly applies to (x^2-100=0)?
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Answer and explanation
Correct answer: (a^2-b^2=(a-b)(a+b))
(100=10^2), so it is a difference of squares form. In exams, choosing the correct identity is the fastest method.
Frequently asked questions
What is the correct answer to this question?
(a^2-b^2=(a-b)(a+b))
Why is this the correct answer?
(100=10^2), so it is a difference of squares form. In exams, choosing the correct identity is the fastest method.
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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