Simplify the following radical expression.
(7 + √13)(7 − √13)

36

Step-by-step explanation:

(7+ )(7- )

this is in the form of a^2-b^2 formula

a^2-d^2=(a-b)(a+b).so write,

(7)^2-( )^2

=49-13

=36

The given expression can be written as :

[ by applying identity, (a+b) × (a-b) = a²-b² ]

Therefore, we will get 36 as our simplified answer.

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false

step-by-step explanation: