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Which option correctly explains why the product of (6x−1) and (x+8) is not linear?

Answer and explanation

Correct answer: Because its degree is 2

To decide whether the product is linear, find the highest power of x after multiplication. Expanding gives (6x−1)(x+8)=6x²+48x−x−8=6x²+47x−8. The leading term is 6x², and its coefficient is nonzero. Therefore the resulting polynomial has degree 2. A linear polynomial must have degree exactly 1, so this product is quadratic and is not linear. Option C gives the correct reason. Option A incorrectly claims degree 1. Options B and D describe a constant polynomial or the zero polynomial, but the expanded expression has a nonzero x² term and variable terms, so neither description can apply.

Related tags

PolynomialDegreeProductLinear PolynomialIntroduction To PolynomialsClass 9 McqLinear PolynomialsMathematics

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