Question

(5 - √2) (5+√2) find the product.

Answer 1

Answer:

23

Step-by-step explanation:

(5-√2)(5+√2)

using a²-b²=(a+b)(a-b)

5²-(√2)²

25-2

23

Answer 2

Answer:

(5-root2)(5+root2)

(a+b)(a-b)=a^2-b^2

=(5)^2 -(root2)^2

=25-2

=23