If (x+y)=8 and (x-y)=6, what is the value of xy?

If (x+y)=8 and (x-y)=6, what is the value of xy? Correct Answer 7

দেযা আছে,x + y  =  8 , x - y  =  6xy  = (x + y2)2 - (x - y2)2 = (82)2 - (62)2 = 644 - 364 = 64 - 364 =  284 = 7
Bissoy MCQ

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