Question

ecuacion (x+1)^4-21=15.4

Answer 1

Respuesta:

${(x + 1)}^{4} - 21 = 15 \times 4$

${(x + 1)}^{4} = 81$

$\sqrt[4]{(x + 1) {}^{4} } = \sqrt[4]{81}$

$x + 1 = 3$

$x = 3 - 1$

$x = 2$