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

Answer and explanation

Correct answer: 1

Combining the like terms gives
\(x^4-2x^4+x^4=(1-2+1)x^4=0\). Hence, \(f(x)=3x-5\). The highest power of \(x\) in the simplified polynomial is 1, so its degree is 1. Option 4 may seem tempting from the original expression, but the fourth-degree terms cancel out. Exam tip: Always simplify like terms before finding the degree of a polynomial.

Related tags

PolynomialsDegree Of PolynomialLike TermsCancellationAlgebraDegree Of A PolynomialIntroduction To PolynomialsMathematics

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