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Which option gives the correct sum of (2x^2+5x-6) and (3x^2-7x+10)?

Answer and explanation

Correct answer: \(5x^2-2x+4\)

While adding polynomials, combine only like terms. Here, \(2x^2+3x^2=5x^2\), \(5x-7x=-2x\), and \(-6+10=4\). Therefore, the sum is \(5x^2-2x+4\), so option C is correct. Option A incorrectly adds the \(x\)-terms. Exam tip: add the \(x^2\)-terms, \(x\)-terms, and constant terms separately.

Related tags

Algebraic ExpressionsPolynomial AdditionLike TermsGrade 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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