Question

determine o valor da raiz quadrada - 2 x + 4 elevado a 2x - 8​

Answer 1

$- 2 + {4}^{2x - 8} \\ - 2 + ( {2}^{2} ) {}^{2x - 8} \\ - 2 + {2}^{4x - 16} \\ 1 + 4x - 16 = 0 \\ 4x = 15 \\ x = \frac{15}{4}$