Question

determine o valor de: √30+√32+√5^(2)−√81.

Answer 1

$\sqrt{30}+ \sqrt{32} + \sqrt{5^2} - \sqrt{81} = \\ \\ = \sqrt{30} + \sqrt{2^5} +5- \sqrt{9^2} = \\ \\ =\sqrt{30} + \sqrt{2^4.2} +5-9= \\ \\ = \sqrt{30}+ 2^2 \sqrt{2} -4= \\ \\ = \sqrt{30} +4 \sqrt{2} -4=</span>\sqrt{30} +4( \sqrt{2} -1)$=

=5,477+4.1,414-4=5,477+5,657-4=7,134[/tex]

Answer 2

√30+√32+√5^(2)−√81.

√30 + √2².2².2 + 5 - 9

√30 + 2.2√2 - 4

√30 + 4√2 - 4