3 years ago

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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