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Which of the following trinomials can be written as the product of two identical binomials?

Answer and explanation

Correct answer: \(4x^2 - 12x + 9\)

Option A is \(4x^2-12x+9=(2x-3)^2=(2x-3)(2x-3)\), so it is the product of two identical binomials. Option B is the closest distractor, but \((2x-3)^2\) has constant term \(9\), not \(8\). Exam tip: for a perfect-square trinomial \(ax^2+bx+c\), check whether \(b^2=4ac\).

Related tags

Quadratic ExpressionsPerfect Square TrinomialAlgebraic IdentitiesPolynomialsClass 9 MathematicsExploring Algebraic IdentitiesMathematicsClass 9 Mcq

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