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What is x2 + 2x + 9 = 0
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1 vote
What is x2 + 2x + 9 = 0

User Kostas Mouratidis
by
8.5k points

1 Answer

6 votes

Answer:

x has no real solution

Explanation:

Our equation is qudratic equation so the method we will follow to solve it is using the dicriminant :

  • Let Δ be the dicriminant
  • a=1
  • b=2
  • c=9
  • Δ= 2²-4*1*9 =4-36=-32
  • we notice that Δ≤0⇒x has no real solution

User Fedepad
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