Question

Valor do X em:

X²= 36/2 × 2+4 ​

Answer 1

$\rm{x {}^{2} = \frac{36}{2} \times 2 + 4 }$

$\rm{x {}^{2} = 36 + 4 }$

$\rm{x {}^{2} = 40 }$

$\rm{x = ± 2 \sqrt{10} }$

$\rm{x = - 2 \sqrt{10} } \\ \rm{x = 2 \sqrt{10 \: \: } }$

$\large \rm \bf{ x_{1} = - 2 \sqrt{10} } \\ \large \rm \bf{x_{2} = 2 \sqrt{10}}\: \: \: \:$

Answer 2

$\purple{resposta} \\ \red{x_{1} = - 2 \sqrt{10} \: \: . \: \: \: \: x_{2} = 2 \sqrt{10} }$

explicação passo a passo

x^2 =36/2 ×2+4

x^2=36/2 ×2+4 aqui risque os dois numeros 2.

x^2 =36+4

x^2 =40

x=+V40

x=+V4×10

x=+V2^2 ×10

x=+V2^2 V10

x=+2V10

x^2 =40

x=+2V10

x=-2V10

x=2V10

x =-2V10 x =2V10

1 2

Resposta

x =-2V10, x =2V10

1 2