Question

Como simplificar as seguintes expressões numerica √18+ √50 +√98 - √8

Answer 1

18^1/2 = (2^1/2) X 9^1/2 = 3 x (2)^1/2

50^1/2 = (2^1/2) x 25^1/2 = 5 x (2)^1/2

8^1/2 = (2^1/2) x 4^1/2 = 2 x (2)^1/2

Logo:

(3+5-2)(2)^1/2 = 6(2)^1/2