Question

(x + 5)(x – 5)
Multiply

Answer 1

x²-25

Explanation:

To do a sum like this, break up the first bracket and multiply by the second (terms from the first bracket is in bold in first few steps for clarity):

(x + 5)(x – 5)

x(x-5)+5(x-5)

x²-5x+5x-25

x²-25

Answer 2

`{x}^(2) - 25`

Explanation:

`(x + 5)(x – 5) \\ \\ = {(x)}^(2) - {(5)}^(2) \\ \\ = {x}^(2) - 25`