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What is obtained by simplifying (x^2(x^2-3)-x^4+2x)?

Answer and explanation

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

First apply the distributive property: \(x^2(x^2-3)=x^4-3x^2\). Therefore, the expression becomes \(x^4-3x^2-x^4+2x\). The like terms \(x^4\) and \(-x^4\) add to zero, leaving \(-3x^2+2x\). Option A incorrectly combines the \(x^4\) terms, which have opposite signs. Exam tip: after expanding brackets, combine only like terms with the same power of the variable.

Related tags

PolynomialsAlgebraic SimplificationDistributive PropertyLike TermsClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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