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Solution:
We will use the algebraic identity a2 - b2 to find the product.
Given (x + 5)(x - 5)
As we know, that (a + b)(a - b) = a2 - b2
Where a = x, b = 5
⇒ (x + 5)(x - 5) = x2 - 52
⇒ (x + 5)(x - 5) = x2 - 25
Summary:
The product of (x + 5)(x - 5) is x2 - 25.