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Alexxandr [17]
3 years ago
6

What is x2 + 2x + 9 = 0

Mathematics
1 answer:
vova2212 [387]3 years ago
4 0

Answer:

x has no real solution

Step-by-step 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

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Alborosie

Answer:

a = $17.25

Step-by-step explanation:

let the money spend on the necklace be a

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8 0
3 years ago
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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

Given data

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2 years ago
If A = (1,2,3,4,5), then the number of proper subsets of A is- ​
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Step-by-step explanation:

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