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Algebraic Identities

What should b...

Question

What should be added to $x^{2} + 6 x$ to get $(x + 3)^{2}$

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Solution

We know,

$(x + 3)^{2} = x^{2} + 9 + 6 x$

Therefore, $^{'} 9^{'}$ should be added to $(x^{2} + 6 x)$ , to get $(x + 3)^{2}$ .

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