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aliera95

  • 2 years ago

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  1. RadEn
    • 2 years ago
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    can you check the discriminant ?

  2. RadEn
    • 2 years ago
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    discriminant (D) = b^2 - 4ac

  3. aliera95
    • 2 years ago
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    it is 0

  4. zzr0ck3r
    • 2 years ago
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    (-b+-sqrt(b^2-4ac))/2a is how we find roots you just showed that the sqrt part is 0 so you are left with -b/(2a)

  5. zzr0ck3r
    • 2 years ago
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    this is only one solution

  6. RadEn
    • 2 years ago
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    if D = 0 then it has the same roots

  7. zzr0ck3r
    • 2 years ago
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    note: if you did not get 0, then the sqrt part would have two answers because we do +-sqrt.

  8. aliera95
    • 2 years ago
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    so my answer is d) ?

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