Question

$(20 \div {x)}^{30} = {4}^{30 }$
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Answer 1

x=5
.....................

Answer 2

Răspuns:

(20 - x)^30 = 4^30

20 - x = ± 4

20 - x = 4

- x = - 16 | *(-1)

x = 16

20 - x = - 4

-x = - 24| *(-1)

x = 24

x1 = 16, x2= 24