Question

Simplifique as radicais :
a) 7+2√3-3√3
b)2√8+√72-√450
c)5√12-6√27

Answer 1

Explicação passo-a-passo:

$a)7 + 2 \sqrt{3} - 3 \sqrt{3} = 9 \sqrt{3} - 3 \sqrt{3} = 6 \sqrt{3} \\ \\ b)2 \sqrt{8} + \sqrt{72} - \sqrt{450} = 2.2 \sqrt{2} + 6 \sqrt{2} - 15 \sqrt{2} = 4 \sqrt{2} + 6 \sqrt{2} - 15 \sqrt{2} = 10 \sqrt{2} - 15 \sqrt{2} = - 5 \sqrt{2} \\ \\ c) 5 \sqrt{12} - 6 \sqrt{27} = 5.2 \sqrt{3} - 6.3 \sqrt{3} = 10 \sqrt{3} - 18 \sqrt{3} = -8 \sqrt{3}$

espero ter ajudado ♡