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Factorise: \( \Large x^{2}+18x+81 \)

A) \( \Large \left(x+9\right) \left(x-9\right) \)
B) \( \Large \left(x+9\right)^{2} \)
C) \( \Large \left(x+3\right)^{2} \)
D) \( \Large \left(x-9\right)^{2} \)

Correct Answer:


B) \( \Large \left(x+9\right)^{2} \)

Description for Correct answer:

\( \Large x^{2}+18x+81 = x^{2}+2 \times 9x+9^{2} \)

=\( \Large \left(x+9\right)^{2} \)

Part of solved Factorisation questions and answers : >> Elementary Mathematics >> Factorisation

Comments

Similar Questions

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