December 2019 1 14 Report
Cateto A = 3√5
Cateto B = x - 3
Hipotenusa = x

x^ = (3√5)^ + (x-3)^
x^ = 45 + x^ - 6x + 9
x ^ - x^ + 6x = 54
6x = 54
x = 9

Por que há um 6x ali na segunda linha?
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