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Class 9MathematicsExploring Algebraic IdentitiesQuadratic expressionsHard
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What is the difference between ((x+2)(x+8)) and ((x+5)^2)?

Answer and explanation

Correct answer: The second is greater than the first by (1)

((x+2)(x+8)=x^2+10x+16) and ((x+5)^2=x^2+10x+25). Exam tip: cancel common terms and compare constants.

Related tags

ComparisonQuadratic ExpressionsExpansionExploring Algebraic IdentitiesMathematicsClass 9 Mcq
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  2. 2What will be the factorised form of (r^2-2rs+s^2)?
  3. 3Which expression can be factorised directly using the identity for the difference of two squares?
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  5. 5Which expression is a quadratic expression?
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  10. 10Which of the following quadratic expressions can be factorised using the identity for the difference of two squares?
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