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What is the simplest form of the expression \(a^2-a^2+5\)?

Answer and explanation

Correct answer: \(5\)

The like terms \(a^2\) and \(-a^2\) cancel each other, so \(a^2-a^2=0\). Therefore, the expression becomes \(0+5=5\). Option B is incorrect because it retains one \(a^2\) term instead of cancelling the two opposite terms. Exam tip: combine like terms with their signs before simplifying the remaining expression.

Related tags

AlgebraSimplificationLike TermsPolynomialsGeneral Chapter PracticeCommon QuestionsCommonMathematics

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