Question

$\frac{ - 10 + \sqrt{ {10}^{2} - 4 \times 2 \times 12} }{2 \times 2}$
preciso dos cálculos, faça os cálculos passo a passo​

Answer 1

Resposta:

-10 + √10²-4.2.12

           2.2

-10 + √100 - 96

            4

-10 + √4

     4

-10+2 (+)

   4

-8

4

-2 <-------

-10 - 2 (-)

    4

-12

 4

-3 <---------

Answer 2

Resposta:

$\Large{\begin{array}{i}\sf \dfrac{-10+\sqrt{10^2-4\times2\times12} }{2\times2}\\ \\ \\ \sf\dfrac{-10+\sqrt{100-96} }{4}\\ \\ \\ \sf\dfrac{-10+\sqrt{4} }{4}\\ \\ \\ \sf\dfrac{-10+2}{4}\\ \\ -\dfrac{8}{4}=-2\end{array}$