Help with my algebra
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Help with my algebra

[From: ] [author: ] [Date: 11-10-10] [Hit: ]
......
the operation && is defined for all values of x and y by the equation x&&y = x^2 + y^1/3. What is the value of -4&&x if x = 5&&8
the answer is 19. But I dont know how they got it, I keep getting -6.8

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16 + x^(1/3) = 16 + [ 25 + 2]^(1/3) = 16 + 3 = 19
1
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