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Class 9MathematicsExploring Algebraic IdentitiesQuadratic expressionsHard
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In ((x-a)^2), the constant term is (36) and (a>0). What will be the coefficient of (x)?

Answer and explanation

Correct answer: (-12)

From (a^2=36), (a=6), and the middle term is (-2ax=-12x). Exam tip: the middle term is negative in a subtraction square.

Related tags

Constant TermParameterPerfect SquareQuadratic ExpressionsExploring Algebraic IdentitiesMathematicsClass 9 Mcq
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