If 4^x=9 and 9^y=256, then find the value of x+y
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4^x = 9
9^y = 256
9^y = 4^4
(4^x)^y = 4^4
4^xy = 4^4
xy = 4
because base is same
9^y = 256
9^y = 4^4
(4^x)^y = 4^4
4^xy = 4^4
xy = 4
because base is same
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