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If (p(x)=2x+5) and (q(x)=x+4), what is (p(x)+q(x))?

Answer and explanation

Correct answer: \(3x+9\)

\(p(x)+q(x)=(2x+5)+(x+4)\). Combining like terms, \(2x+x=3x\) and \(5+4=9\), so the sum is \(3x+9\). In \(2x+9\), the \(x\)-terms have not been added correctly. Exam tip: while adding polynomials, combine only terms with the same variable and exponent.

Related tags

PolynomialsLinear PolynomialsAddition Of PolynomialsLike TermsClass 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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