Question

RESOLVA COM O DESENVOLVIMENTOS?
(C)
$3.(5 \sqrt{3} )$

(D)
$3 \sqrt{12} .4 \sqrt{27} =$

(E)
$3 \sqrt{5} .8 \sqrt{125}$

(F)
$2.(4 + 5 \sqrt{3} )$

(G)
$3 \sqrt{2} .(2 + 1 \sqrt{3} )$

(H)
$(2 + 1 \sqrt{5} ).(5 + 3 \sqrt{5} ) =$

(I)
$(2 + 3 \sqrt{3} ).(1 + 5 \sqrt{12})$
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Answer 1

Resposta:

letra C:

$3(5 \sqrt{3 } \\ 3 \times 5 \sqrt{3} \\ 15 \sqrt{3}$