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For which (a) will ((a-3)x^2+4x-1) become a linear polynomial?

Answer and explanation

Correct answer: \(a=3\)

A linear polynomial has degree 1, so the coefficient of \(x^2\) must be zero. Here, the coefficient of \(x^2\) is \(a-3\). Thus, \(a-3=0\) gives \(a=3\). For values such as \(a=0\) or \(a=4\), the \(x^2\) coefficient is non-zero, so the polynomial remains quadratic. Exam tip: To reduce the degree of a polynomial, set the coefficient of its highest-power term to zero.

Related tags

PolynomialsLinear PolynomialDegree Of PolynomialParameterCoefficientDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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