^ means exponents. / means over like one half is 1/2
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There are different ways of reading this so I am going to give what I think is what’s intended: (-2)⁴ˣ⁺²/(-2)²ˣ=(-2)¹².

Since all the exponents are even, we can remove the minus sign because -1 to an even power is always 1.

So we have 2⁴ˣ⁺²/2²ˣ=2¹², 2⁴ˣ⁺²⁻²ˣ=2¹², 2²ˣ⁺²=2¹².

The exponents are equivalent so 2x+2=12, 2x=10, x=5 is the solution.

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