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7 votes
7 votes
Solve for x by completing the square. Round ur answer to the nearest thousandth. X^2+6x-3=0

User Intermernet
by
2.8k points

2 Answers

14 votes
14 votes

Answer:

. X^2+6x-3=0

x²+6x+9-9-3=0

(x+3)²=12

x+3=√12

x=√12-3=0.46410161513

User Zahid Rouf
by
3.0k points
18 votes
18 votes

Answer:

  • x = {2.196, -8.196}

Explanation:

  • x² + 6x - 3 = 0
  • x² + 2*3*x + 3² - 3 = 3²
  • (x + 3)² = 12
  • x + 3 = ± √12
  • x + 3 = ± 2√3
  • x = 2.196, x = -8.196
User Joakim Berglund
by
2.9k points