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What is the simplified form of (3x^2y-5xy^2+7x^2y-2xy^2)?

Answer and explanation

Correct answer: \(10x^2y-7xy^2\)

\(3x^2y\) and \(7x^2y\) are like terms, so adding their coefficients gives \(10x^2y\). Similarly, \(-5xy^2\) and \(-2xy^2\) combine to give \(-7xy^2\). Therefore, the simplified expression is \(10x^2y-7xy^2\). Option B incorrectly treats the negative second terms as positive. Exam tip: combine only those terms that have the same variables raised to the same powers.

Related tags

PolynomialsAlgebraic ExpressionsLike TermsCombining Like TermsGrade 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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