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Estudos Gerais • 03/12/2025

18) Determine o valor de (3x + 2y)², sabendo que 9x² + 4y² =...

  1. Determine o valor de (3x + 2y)², sabendo que 9x² + 4y² = 25 e xy = 2.

a) 27 b) 31 c) 38 d) 49 e) 54

  1. (Obmep) A maior raiz da equação (x - 37)² - 169 = 0 é:

A) 39 B) 43 C) 47 D) 50 E) 53

18) Determine o valor de (3x + 2y)², sabendo que 9x² + 4y² = 25 e xy = 2. a) 27 b) 31 c) 38 d) 49 e) 54 19) (Obmep) A maior raiz da equação (x - 37)² - 169 = 0 é: A) 39 B) 43 C) 47 D) 50 E) 53
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