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What is the simplified form of \\(x+12)(x-12)\\?

Answer and explanation

Correct answer: \\(x^2-144\\)

This expression uses the identity \\(a+b)(a-b)=a^2-b^2\\). Here, \\(a=x\\) and \\(b=12\\), so the result is \\(x^2-12^2=x^2-144\\). Option B incorrectly gives the sum of the squares; opposite signs in the two binomials produce a difference of squares. Exam tip: recognise \\(a+b)(a-b)\\) directly as \\(a^2-b^2\\).

Related tags

PolynomialsAlgebraic IdentitiesDifference Of SquaresBinomial MultiplicationOperations On Real Numbers And The Laws Of ExponentsMathematicsClass 10 Mcq

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