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If (P(x)=(x^3-4)(x^3+4)-x^6), what is the degree of (P(x))?

Answer and explanation

Correct answer: \(0\)

Using the identity \((a-b)(a+b)=a^2-b^2\), we get \((x^3-4)(x^3+4)=x^6-16\). Therefore, \(P(x)=x^6-16-x^6=-16\). This is a non-zero constant polynomial, so its degree is \(0\). It is not degree \(6\), because the \(x^6\) terms cancel. Exam tip: simplify the expression and combine like terms before finding the degree.

Related tags

PolynomialsDegree Of PolynomialAlgebraic IdentitiesConstant PolynomialClass 9 MathematicsDegree Of A PolynomialIntroduction To PolynomialsMathematics

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