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In which expression are the powers of (x) (4), (1), and (0)?

Answer and explanation

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

In \(x^4+7x-3\), the powers of \(x\) in \(x^4\), \(7x\), and \(-3\) are \(4\), \(1\), and \(0\), respectively. Since \(-3=-3x^0\), a constant term has power \(0\) of the variable. Option B contains \(x^{-1}\), and option C contains the fractional power \(x^{1/2}\). Exam tip: write a constant as a multiple of \(x^0\) to identify its power quickly.

Related tags

PolynomialsExponentsPowers Of XConstant TermClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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