Expand $(x + 5) (x - 5)$ .

2 x

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x^{2} - 10

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(x - 5)^{2}

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x^{2} - 25

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Solution

The correct option is D $x^{2} - 25$
Using the identity $(a + b) (a - b) = a^{2} - b^{2}$ ,
we can expand, $(x + 5) (x - 5) = x^{2} - 25$

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