Question

(13+x)(13-x) expand in explain

Answer 1

$13 (13)-x13+13x- {x}^{2} \\ = 169 - 13x + 13x - {x}^{2} \\ = 169 - {x}^{2}$

Answer 2

Answer:169-x²

Step-by-step explanation:

(13+x) (13-x)

Apply identity: (a+b)(a-b)=(a²-b²)..1

=>(13+x) (13-x)=(13²-x²)

=169-x²..answer

Explaination: friends, any expression which is written as (a+b)(a-b), can be solved with the help of eq. 1

May it help U