Question

Calcule el valor de x:
x² - 4 = 20

AYUDAAA PORFAVOORR, SEAN SERIOS!

Answer 1

Explicación paso a paso:

${x}^{2} - 4 = 20 \\ {x}^{2} = 20 + 4 \\ {x}^{2} = 24 \\ x = \sqrt{24} \\ x = 2 \sqrt{6} \\ x1 = 4.9 \\ x2 = - 4.9$