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anonymous

  • one year ago

Need help Given the following constants for a standard form quadratic equation, determine the nature of its roots. a=3, b=3,c=2 A. rational B. irrational C. no real solutions D. There is not enough information provided.

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  1. MrNood
    • one year ago
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    do you know what the 'discriminant' of a quadratic equation is?

  2. anonymous
    • one year ago
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    yes

  3. MrNood
    • one year ago
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    so work out the value of the discriminant from the values of a,b and c as given

  4. anonymous
    • one year ago
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    That the part i need help with

  5. MrNood
    • one year ago
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    you just said oyu know what it is you know a,b and c what is the formula for the discriminant??

  6. MrNood
    • one year ago
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    the formula is \[b ^{2} - (4 \times a \times c)\] a=3 b=3 c=2 work out the value from the equation above

  7. anonymous
    • one year ago
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    -4ac+b^2

  8. MrNood
    • one year ago
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    that is the correct formula now work out the value using a=3 b=3 c=2

  9. anonymous
    • one year ago
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    rational

  10. MrNood
    • one year ago
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    so - you have asked for help - and I have given you a number of guides to the answer. If you ignore the guide then you will just guess the answer, as you have done. Instead of guessing try this: -4ac+b^2 now work out the value using a=3 b=3 c=2

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