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Which option gives the correct sum of (2x^2) and (-5x^2)?

Answer and explanation

Correct answer: \(-3x^2\)

\(2x^2\) and \(-5x^2\) are like terms because both have the variable part \(x^2\). Add their coefficients: \(2+(-5)=-3\). Therefore, the sum is \(-3x^2\). \(-3x^4\) is incorrect because exponents are not added when like terms are added. Exam tip: before adding or subtracting, check that the variable parts and their exponents are the same.

Related tags

Algebraic ExpressionsLike TermsAddition Of PolynomialsCoefficientsClass 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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