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If (p(x)=x^2+ax+a^2), when will its degree in (x) be (2)?

Answer and explanation

Correct answer: For all real values of \(a\)

The degree of a polynomial is the highest power of \(x\) having a non-zero coefficient. Here, the coefficient of \(x^2\) is always \(1\), and it cannot become zero for any value of \(a\). Hence, \(p(x)\) has degree \(2\) for every real \(a\). The condition \(a\ne0\) is unnecessary because even when \(a=0\), \(p(x)=x^2\) still has degree \(2\). Exam tip: In a polynomial containing a parameter, first check the coefficient of the highest-power term.

Related tags

Polynomial DegreeParameterised PolynomialQuadratic PolynomialAlgebraGrade 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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