Question

0,5
$0.5 \times {}^{2} = 0.6$
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Answer 1

Resposta:

$0,5x^{2} = 0,6~~~~(\times10)\\5x^{2}=6\\x^{2} =\frac{6}{5} \\x=\pm\sqrt{\frac{6}{5}} \\x=\pm\frac{\sqrt{6}}{\sqrt{5}}\frac{\sqrt{5}}{\sqrt{5}}\\x=\pm\frac{\sqrt{30}}{5}$