Question

20.logaritmo(x^2-15)=0

Answer 1

$log( {x}^{2} - 15) = 0 \\ {x}^{2} - 15 = {10}^{0} \\ {x}^{2} = 1 + 15 \\ {x}^{2} = 16 \\ x = \sqrt{16} \\ x = 4 \\ \\ x = - 4$
Las respuestas son 4 y - 4