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While completing the square, which term must be added to (x^2-18x)?
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Answer and explanation
Correct answer: (81)
Half of (-18) is (-9), and ((-9)^2=81). In exams, the square of half the coefficient is always positive.
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What is the correct answer to this question?
(81)
Why is this the correct answer?
Half of (-18) is (-9), and ((-9)^2=81). In exams, the square of half the coefficient is always positive.
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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