Question

simplify ( 3+√5) (3-√5)​

Answer 1

Answer:

We have to know that the equation

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

so the given problem is in the form of above equation

(3^2-√5^2)=9-5=4

so answer is four

Step-by-step explanation:

if there is a whole square on a square root it will be cancelled so root 5 whole 2 is equal to 5

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