Question

$- 6x2 + 2400 = 0$
me ajudem galera?​

Answer 1

$- 6 {x}^{2} + 2400 = 0 \\ - 6 {x}^{2} = - 2400 \: ( \times - 1)\\ 6 {x}^{2} = 2400 \\ {x}^{2} = \frac{2400}{6} \\ {x}^{2} = 400 \\ x = \sqrt{400} \\ x = 20$

Resposta final: x = 20