Question

9× = 3√27
9× = 3.3½
Eu posso multiplicar 3x3?

Answer 1

1 )

$\mathsf{9x=3\sqrt{27}}\\ \\ \\ \mathsf{x=\dfrac{3\sqrt{27}}{9}}\\ \\ \\ \mathsf{x=\dfrac{3\sqrt{3\cdot9}}{9}}\\ \\ \\ \mathsf{x=\dfrac{3\cdot 3\sqrt{3}}{9}}\,\,\,\,\,\to\,\,\,\,\,\boxed{\boxed{\mathsf{x=\sqrt{3}}}}$
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2 )

$\mathsf{9x=3\cdot \dfrac{3}{2}}\\ \\ \\ \mathsf{9x=\dfrac{9}{2}}\\ \\ \\ \mathsf{x=\dfrac{9}{9\cdot 2}}\,\,\,\,\,\to\,\,\,\,\, \boxed{\boxed{\mathsf{x=\dfrac{1}{2}}}}$