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Which expression is a polynomial but has degree less than (5)?

Answer and explanation

Correct answer: \(3x^4-7x+6\)

In \(3x^4-7x+6\), the highest power of \(x\) is \(4\). Therefore, it is a polynomial of degree \(4\), and since \(4<5\), option C is correct. Option A is a polynomial but has degree \(5\). In option B, \(x\) occurs in the denominator, and option D has a fractional exponent, so neither is a polynomial. Exam tip: The exponents of a variable in a polynomial must be non-negative integers.

Related tags

PolynomialsDegree Of PolynomialAlgebraClass 9 MathematicsExponentsDegree Of A PolynomialIntroduction To PolynomialsMathematics

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