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Subjects
Class 10MathematicsPolynomialsOperations on real numbers and the laws of exponentsMedium
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What is the simplified form of (9x + 2) − (4x − 6)?

Answer and explanation

Correct answer: 5x + 8

The minus sign before the second bracket changes the signs of both terms inside it: (9x + 2) − (4x − 6) = 9x + 2 − 4x + 6. Combining like terms gives (9x − 4x) + (2 + 6) = 5x + 8, so option B is correct.

Related tags

PolynomialsAlgebraic ExpressionsLike TermsSubtractionOperations On Real Numbers And The Laws Of ExponentsMathematicsClass 10 Mcq
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10 more MCQs
  1. 1Which option is the simplified form of √128?
  2. 2If α = √3 + 1 and β = √3 − 1, what is αβ?
  3. 3Which option gives the correct value of 1/(√10 − 3)?
  4. 4What is the value of (2^3\cdot2^4)?
  5. 5What is the simplified form of (\frac{5^6}{5^2})?
  6. 6What is the simplified form of ((3^2)^4)?
  7. 7If \(a\ne0\), what is the value of \(a^0\)?
  8. 8What is (10^{-2}) equal to?
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  10. 10What is the value of \(\left(\frac{3}{4}\right)^2\)?
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