Question

raiz quadrada de -10-3x=x​

Answer 1

Resposta:

-10-3x=x

-10=x+3x

-10=4x

x=-2.5

Answer 2

$\sqrt{-10-3x}=x$

${(\sqrt{-10-3x})}^{2}={x}^{2}$

$-10-3x={x}^{2}\\{x}^{2}+3x+10=0$

$\Delta={b}^{2}-4ac$

$\Delta={3}^{2}-4.1.10$

$\Delta=9-40$

$\Delta=-31$

S=∅