The square root of (7 + 3âˆš5) (7 - 3âˆš5) is  Choose the most appropriate option:
A) âˆš5  B) 2  C) 4  D) 3âˆš5  E) 5
Explanation:   âˆš(7 + 3âˆš5)(7 - 3âˆš5)	=	âˆš(7)2 - (3âˆš5)2 = âˆš49 - 45= 
<gadget id="calculator">49 - 45</gadget>
<output>4</output>
âˆš4= 2.   ANSWER IS 2
<result>B</result>
The square root of (7 + 3âˆš5) (7 - 3âˆš5) is