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If (f(x)=4x^8-9x^8+5x^8-3x^4+10), what is the degree of (f(x))?

Answer and explanation

Correct answer: 4

Combining like terms gives \(4x^8-9x^8+5x^8=(4-9+5)x^8=0\). Thus, \(f(x)=-3x^4+10\). The highest exponent with a non-zero coefficient is \(4\), so the degree of the polynomial is \(4\). Option 8 is incorrect because all the \(x^8\) terms cancel out. Exam tip: simplify like terms before finding a polynomial's degree.

Related tags

PolynomialsDegree Of PolynomialLike TermsTerm CancellationClass 9 MathematicsDegree Of A PolynomialIntroduction To PolynomialsMathematics

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