Question

Va rog sa ma ajutati, e urgent, aveti ex mai sus​

Answer 1

Răspuns: $\bf x_{1} =-\dfrac{6}{5} \:\:\:si\:\: x_{2} =\dfrac{6}{5}$

Explicație pas cu pas:

Salutare!

$\bf 5x^{2} = \dfrac{36}{5} \implies 5\cdot 5x^{2} = 36 \implies x^{2} = \dfrac{36}{25}\implies$

$\bf x = \sqrt{\dfrac{36}{25} } \implies \boxed{\bf x_{1} =-\dfrac{6}{5}} \:\:\:si\:\:\:\boxed{\bf x_{2} =\dfrac{6}{5}}$

#copaceibrainly

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Answer 2

Bună ! ɾ⚈▿⚈ɹ

Răspuns:

$x_{1} = -\dfrac{6}{5} ; x_{2} = \dfrac{6}{5}$

Explicație pas cu pas:

$5x^{2} = \dfrac{36}{25} \iff x^{2} = \dfrac{36}{25}$

$x = \pm \dfrac{6}{5} \iff x = -\dfrac{6}{5} ; x = \dfrac{6}{5}$

$x_{1} = -\dfrac{6}{5} ; x_{2} = \dfrac{6}{5}$

$x_1 ; x_2 \in R$