Question

Me ajudemmmm..
Simplificando a expressao 3√8-3√18+2√72 obtemos

a) 3√2 b)9√2 c)6√2 d)8√2 e)7√2

Answer 1

Resposta:

3 √8 - 3 √18 + 2 √72 =

3 √2².2 - 3 √2.3² - 2 √2².2.3² =

3.2 √2 - 3.3 √2 + 2.2.3 √2 =

6 √2 - 9 √2 + 12 √2 = 9 √2