Question

Resolva!

1
a √2 + 4√2+5 √2 - 3√2
               3        3
b 3√2 + 2√3 + 3√2 + 4√3

c 2√5 - √5

d 8√7 - 6√7 - 4√7

e 2√11 + 1√11 - 3√1

Answer 1

1) Resolva :


a)
√2 + 4√2/3 +5 √2/3 - 3√2=>

$\sqrt{2} + \frac{4 \sqrt{2} }{3} + \frac{5 \sqrt{2} }{3} + 3 \sqrt{2} = \\ \\ 7 \sqrt{2}$
                   
b)
3√2 + 2√3 + 3√2 + 4√3=>

$6 \sqrt{2} + 6 \sqrt{3} = \\ \\ 18.87 > > > aproximadamente$
c )
2√5 - √5=>
$2 \sqrt{5} - 1 \sqrt{5} = \\ \\ (2 - 1) \sqrt{5} = \\ \\ 1 \sqrt{5} = \\ \\ \sqrt{5}$

d )
8√7 - 6√7 - 4√7=>
$(8 - 6 - 4) \sqrt{7} = \\ \\ - 2 \sqrt{7}$