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HMMT 二月 2003 · GEN1 赛 · 第 7 题

HMMT February 2003 — GEN1 Round — Problem 7

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. Find the real value of x such that x + 3 x + 3 x + 7 = 0.
解析
  1. Find the real value of x such that x + 3 x + 3 x + 7 = 0. √ 3 Solution: − 1 − 6 √ 3 3 3 Rewrite the equation as ( x + 1) + 6 = 0 to get ( x + 1) = − 6 ⇒ x + 1 = − 6 ⇒ x = √ 3 − 1 − 6.