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Rina says that \(5a^2-3a+1\) is a trinomial. Her statement is correct because—

Answer and explanation

Correct answer: The expression has three terms: \(5a^2\), \(-3a\), and \(1\).

A trinomial is an algebraic expression with exactly three terms. The terms of \(5a^2-3a+1\) are \(5a^2\), \(-3a\), and \(1\), so it is a trinomial. The highest power being 2, as stated in option B, makes it a quadratic expression; it does not explain why it is a trinomial. Exam tip: count the terms separated by plus or minus signs.

Related tags

Algebraic ExpressionsPolynomialsTrinomialsTerms Of ExpressionQuadratic PolynomialClass 9 MathematicsIntroduction To PolynomialsMathematics

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