Question

me ajudem!!!

calcule as somas dos radicais

a) $3 \sqrt{3} + \sqrt{12}$
b) $\sqrt{5} - \sqrt{20}$
c) $4 \sqrt{2} - \sqrt{12}$
d) $5 \sqrt{2} + \sqrt{98} - \sqrt{8}$
e) $3 \sqrt{5} + \sqrt{80} - \sqrt{20}$
f) $\sqrt{2} + \sqrt{8} + \sqrt{32}$
g) $7 \sqrt{2} - 2 \sqrt{8} + 3 \sqrt{32}$
h) $2 \sqrt{3} + \sqrt{27} - \sqrt{3}$
i) $\sqrt{32} - 2 \sqrt{8} + \sqrt{2}$
j) $\sqrt{7} + \sqrt{28} + \sqrt{63}$
k) $\sqrt{20} - \sqrt{5} + 4 \sqrt{5}$
l) $2 \sqrt{48} + 3 \sqrt{27} - 4 \sqrt{5}$
m) $\sqrt{3} + \sqrt{18} + 5 \sqrt{8} - \sqrt{50}$
n) $\sqrt{3} - \sqrt{27} + 4 \sqrt{12} - 2 \sqrt{3}$

ME AJUDEM POR FAVOR!!!

Answer 1

Olá, bom dia ☺

Resoluções:

a)

$3 \sqrt{3} + \sqrt{12} \\ \\ 3\sqrt{3} +2\sqrt{3} \\ \\ = 5\sqrt{3}$

b)

$\sqrt{5} -\sqrt{20} \\ \\ \sqrt{5} -2\sqrt{5} \\ \\ = -\sqrt{5}$

c)

$4\sqrt{2} - \sqrt{12} \\ \\ =4\sqrt{2} - 2\sqrt{3}$

d)

$5\sqrt{2} + \sqrt{98} -\sqrt{8} \\ \\ 5\sqrt{2} +7\sqrt{2} -2\sqrt{2} \\ \\ = 10\sqrt{2}$

e)

$3\sqrt{5} +\sqrt{80} -\sqrt{20} \\ \\ 3\sqrt{5} +4\sqrt{5} -2\sqrt{5} \\ \\ = 5\sqrt{5}$

f)

$\sqrt{2} +\sqrt{8} +\sqrt{32} \\ \\ \sqrt{2} +2\sqrt{2} + 4\sqrt{2} \\ \\ = 7\sqrt{2}$

g)

$7\sqrt{2} -2\sqrt{8} +3\sqrt{32} \\ \\ 7\sqrt{2} -4\sqrt{2} +12\sqrt{2} \\ \\ =15\sqrt{2}$

h)

$2\sqrt{3} + \sqrt{27} -\sqrt{3} \\ \\ 2\sqrt{3} + 3\sqrt{3} -\sqrt{3} \\ \\ = 4\sqrt{3}$

i)

$\sqrt{32} - 2\sqrt{8} +\sqrt{2} \\ \\ 4\sqrt{2} - 4\sqrt{2} +\sqrt{2} \\ \\ = \sqrt{2}$

j)

$\sqrt{7} +\sqrt{28} +\sqrt{63} \\ \\ \sqrt{7} + 2\sqrt{7} +3\sqrt{7} \\ \\ = 6\sqrt{7}$

k)

$\sqrt{20} -\sqrt{5} +4\sqrt{5} \\ \\ 2\sqrt{5} -\sqrt{5} +4\sqrt{5} \\ \\ =5\sqrt{5}$

l)

$2\sqrt{48} +3\sqrt{27} -4\sqrt{5} \\ \\ 8\sqrt{3} +9\sqrt{3} -4\sqrt{5} \\ \\ = 17\sqrt{3} -4\sqrt{5}$

m)

$\sqrt{3} +\sqrt{18} +5\sqrt{8} -\sqrt{50} \\ \\ \sqrt{3} + 3\sqrt{2} +10\sqrt{2} -5\sqrt{2} \\ \\ = 8\sqrt{2}+\sqrt{3}$

n)

$\sqrt{3} -\sqrt{27} +4\sqrt{12} -2\sqrt{3} \\ \\ \sqrt{3} - 3\sqrt{3} +8\sqrt{3} -2\sqrt{3} \\ \\ = 4\sqrt{3}$

Bons estudos :)