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If (p(x)=x^3(x^2+x)-x^5-x^4+15), what is the degree of (p(x))?

Answer and explanation

Correct answer: \(0\)

First expand: \(x^3(x^2+x)=x^5+x^4\). Therefore, \(p(x)=x^5+x^4-x^5-x^4+15=15\). A non-zero constant polynomial such as \(15\) has degree \(0\), so \(0\) is correct. Degree \(5\) appears before simplification, but its terms cancel out. Exam tip: simplify an expression and combine like terms before finding its degree.

Related tags

PolynomialsDegree Of PolynomialConstant PolynomialAlgebraic SimplificationCancellationDegree Of A PolynomialIntroduction To PolynomialsMathematics

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