Question

Realiza las siguientes operaciones,, ​

Answer 1

Explicación paso a paso:

a) (-$\sqrt{49}$) x (-$\sqrt{9\\}$) = -7 x -3 = -21

b) $\sqrt{625}$ = 25

c) 3$\sqrt{2}$ + 5  $\sqrt{2$ - 6$\sqrt{3}$ =

$3\sqrt{2} + 5\sqrt{2} = 8\sqrt{2}$

$8\sqrt{2} - 6 \sqrt{3}$

d) $\sqrt{18\\}$ - $\sqrt{32}$ + $\sqrt{42}$ =

$\sqrt{18} = \sqrt{2 x 3}$

$\sqrt{32} = 4\sqrt{2}$

$\sqrt{2} x 3 - 4\sqrt{2} + \sqrt{42}$

$-\sqrt{2} +\sqrt{42}$

e) ($\sqrt{6}-\sqrt{7}$)($\sqrt{3}-\sqrt{6\\}$)

$3\sqrt{2}-6-\sqrt{21}+\sqrt{42}$

f) $\sqrt{45}$ ÷ $\sqrt{30}$

$\frac{\sqrt{45} }{\sqrt{30} }$

$\sqrt{\frac{3}{2}$

g)$\sqrt{441}$ = 21

h)$\sqrt{5}(\sqrt{80}$ ÷ $3)$

$\sqrt{5} \frac{4\sqrt{5} }{\sqrt{3} }$

$\frac{4\sqrt{5} }{\sqrt{3}} \sqrt{5}$

i) $\sqrt{125}$ - $\frac{7}{\sqrt{5} }$

$\sqrt{5^{2}\sqrt{5} } -\frac{7}{\sqrt{5} }$

$5\sqrt{5} } -\frac{7}{\sqrt{5} }$

:. Espero haberte ayudado