Question

Sabendo que x² = 19 e que y² = 54 , calcule o valor de ( x + y )( x - y ) .

Answer 1

Resposta:

x= √19 ≅ 4,35

y= √54 ≅ 7,34

(4,35+7,34)×(4,35- 7,34)

11,69× -2,99= -34,9531

R= -34,9531