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What should be added to the expression\(x \)\( \left( x+a\right)\)\( \left( x+2a\right)\)\( \left( x+3a\right)\) so that the sum may ba a perfect square?

A) \( 9a^{2}\)
B) \( 4a^{2}\)
C) \( a^{4}\)
D) None of these

Correct Answer:


B) \( 4a^{2}\)

Part of solved CDS Maths(2) questions and answers : Exams >> CDSE >> CDS Maths(2)

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Similar Questions

1). If the roots of the equation \(Ax^{2} \)+\( Bx\)+\( C\) =0 are -1 and 1 then which one of the following is correct?

A). A andC are both zero

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C). A and C are both negative

D). A and C are of opposite sign

2). If A and B are any two non-empty subsets of a set E. then what is \( A \cup ( A \cap B) \) equal to?

A). \( A\cap B \)

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