Mejor respuesta

Eri8k4gIsarian
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(2 ^ (2x + 1)) ( 4 ^ (x + 2)) = 16 ^ ( - x + 3)

(2 ^ (2x + 1)) ( 2² ^ (x + 2)) = 2⁴ ^ ( - x + 3)

(2 ^ (2x + 1)) (2 ^ (2x + 4)) = 2 ^ ( - 4x + 12)

(2 ^ ((2x + 1) + (2x + 4)) = 2 ^ ( - 4x + 12)

2 ^ (4x + 5) = 2 ^ ( - 4x + 12)

Bases iguales se igualan exponentes

4x + 5 = - 4x + 12

8x = 7

X = 7 / 8.