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Given (p(x)=2x^2-3x+5) and (q(x)=x^3+p(x)), what is the degree of (q(x))?

Answer and explanation

Correct answer: 3

Since \(q(x)=x^3+p(x)\) and \(p(x)=2x^2-3x+5\), we get \(q(x)=x^3+2x^2-3x+5\). The highest power of \(x\) in this polynomial is 3, so the degree of \(q(x)\) is 3. Option 5 is incorrect because degrees are not added when polynomials are added; the highest power is considered. Exam tip: simplify the polynomial first, then identify the highest power with a non-zero coefficient.

Related tags

PolynomialsDegree Of PolynomialFunction NotationAlgebraClass 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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