Question

calcular las raíces
$4 \sqrt{81}$
$5 \sqrt{32}$
$\sqrt{289}$
$3 \sqrt{ - 27}$
$4 \sqrt{625}$
$\sqrt{100}$
$5 \sqrt{ - 32}$
$7 \sqrt{ - 1}$
​

Answer 1

Explicación paso a paso:

a. 4$\sqrt{81}$

= 4√9×9

= 4√9²

= 4×9

= 36

b. 5$\sqrt{32}$

= 5√2²×2²×2

= 5×2×2√2

= 20√2

c. $\sqrt{289}$

= √17×17

= √17²

= 17

d. 3$\sqrt{-27}$

=3√3²(-3)

=3×3√-3

= 9$\sqrt{-3}$

e. 4$\sqrt{625}$

=4√5²×5²

=4×5×5

=100

f. $\sqrt{100}$

=√10×10

=√10²

= 10

g. 5$\sqrt{-32}$

=5√2²×2²×(-2)

= 5×2×2√-2

= 20√-2

h. 7$\sqrt{-1}$

= 7i