Question

X . X = 16
X . Y . Y = 36
X . Y . Z = 72
X + Y + Z = ?

Answer 1

x . x = 16

x² = 16

x = √16

x = 4
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x . y . y = 36

4y² = 36

y² = 36/4

y² = 9

y = √9

y =  3
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x . y . z = 72

4 . 3 . z = 72

12z = 72

z = 72/12

z = 6
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x + y + z = ?

4 + 3 + 6 = 13


Forte abraço!