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What is the degree of ((x^5+2x^2)(x^6-x^3)-x^{11})?

Answer and explanation

Correct answer: 8

First expand the product: \((x^5+2x^2)(x^6-x^3)=x^{11}-x^8+2x^8-2x^5=x^{11}+x^8-2x^5\). Subtracting \(x^{11}\) leaves \(x^8-2x^5\). The highest power present is 8, so the degree is 8. Option 11 is a close distractor, but the \(x^{11}\) terms cancel. Exam tip: always simplify like terms before identifying the degree.

Related tags

PolynomialsDegree Of PolynomialExpansionCancellationAlgebraClass 9 MathematicsDegree Of A PolynomialIntroduction To Polynomials

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