1 Answer

Jemar Jones · Answer 1 · 2023-05-17T22:30:17+0000

The answer is C)

You can do this by several ways. The more direct is to realize that (x-5)(x+5) is a factorization of a difference of squares.

Also, you can apply the distributive propierty:

$\begin{gathered} x\cdot x=x^2 \\ x\cdot5=5x \\ -5\cdot x=-5x \\ (-5)\cdot5=-25 \end{gathered}$

Now, you add everithing up:

$\begin{gathered} (x-5)(x+5)=x^2+5x-5x-25=x^2-25 \\ \end{gathered}$

And then you get the answer C)

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