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sergey [27]
3 years ago
8

If 3^2×-1=81, what is the value of x?

Mathematics
2 answers:
Korolek [52]3 years ago
4 0
It wrong, 3^2 =9  

9 x -1= -81.

it always negative put on it.

Lemur [1.5K]3 years ago
3 0
Hello :
<span>3^(2×-1)=81
</span>3^(2×-1) = 3^4
2x-1 =4
2x=5
x=5/2

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