Question

√512-2√126+√2048
Por favor e urgente !!

Answer 1

fatorando
512=2.2.2.2.2.2.2.2.2 = 2².2².2².2

126= 2.3.3.7 = 3².14

2048= 2.2.2.2.2.2.2.2.2.2.2 = 2.².2².2².2².2².2

√512-2√126+√2048

√(2².2².2².2)-2√(3².14)+√(2.².2².2².2².2².2)

Extraindo do radical
2.2.2√2-2.3√14+2.2.2.2.2√2)

8√2-6√14+32√2

40√2 - 6√14