Question

2x² + 10/2 = 37 QUAL O VALOR DO X ?

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Answer 1

O valor do x é igual a 4

Answer 2

Resposta:

$\sf \displaystyle 2x^{2} +\dfrac{10}{2} = 37$

$\sf \displaystyle 2x^{2} +5 = 37$

$\sf \displaystyle 2x^{2} =37-5$

$\sf \displaystyle 2x^{2} = 32$

$\sf \displaystyle x^{2} = \dfrac{32}{2}$

$\sf \displaystyle x^{2} = 16$

$\sf \displaystyle x = \pm \sqrt{16}$

$\sf \displaystyle x = \pm 4$

$\sf \displaystyle x_ 1 = 4$

$\sf \displaystyle x = -\: 4$

$\sf \boldsymbol{ \sf \displaystyle S = \{ x \in \mathbb{R} \mid x = -\: 4 \mbox{\sf \;e } x = 4 \} }$

Explicação passo-a-passo: