Question

62) Resolva a equação exponencial: 2 ³ˣ⁻¹ . 4²ˣ⁺³ = 8³⁻ˣ

Answer 1

2 ³ˣ⁻¹ × 4²ˣ⁺³ = 8³⁻ˣ
2^(3x-1) × 2^2 (2x + 3) = 2^3 (3-x)
2^(3x -1)×2^(4x+6) = 2^(9 - 3x)
2^(7x + 5) = 2^(9 -3x)
=> 7x + 5 = 9 - 3x
10x = 9-5
10x = 4
X = 4/10 = 0.4