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If (p(x)=x^4(x^3+x)-x^7-x^5+23), what is the degree of (p(x))?

Answer and explanation

Correct answer: \(0\)

On multiplying, \(x^4(x^3+x)=x^7+x^5\). Hence, \(p(x)=x^7+x^5-x^7-x^5+23=23\). A non-zero constant polynomial has degree \(0\), so the correct answer is \(0\). Degree \(7\) is only the highest exponent visible before simplification; those terms cancel. Exam tip: always simplify a polynomial completely before finding its degree.

Related tags

PolynomialsDegree Of PolynomialConstant PolynomialTerm CancellationClass 9 MathematicsDegree Of A PolynomialIntroduction To PolynomialsMathematics

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