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tmybby

  • one year ago

What is the number of real solutions? 6x^2-7x-1=0

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  1. mathstudent55
    • one year ago
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    Are you familiar with the quadratic formula?

  2. tmybby
    • one year ago
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    some what

  3. mathstudent55
    • one year ago
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    The part inside the square root symbol is called the discriminant. It is b^2 - 4ac

  4. mathstudent55
    • one year ago
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    Calculate the discriminant using the a, b, and c values of your equation. Then if the discriminant is: - greater than zero, there are 2 real solutions - equal to zero, there is one real solution - less than zero, there are no real solutions.

  5. tmybby
    • one year ago
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    I got two solutions

  6. mathstudent55
    • one year ago
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    Here's a general quadratic equation and the quadratic formula. |dw:1369334659758:dw|

  7. mathstudent55
    • one year ago
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    |dw:1369334734497:dw|

  8. mathstudent55
    • one year ago
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    |dw:1369334799096:dw|

  9. mathstudent55
    • one year ago
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    73 > 0, so there are two real solutions. You are correct.

  10. tmybby
    • one year ago
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    can you help me with one more question please?

  11. mathstudent55
    • one year ago
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    sure

  12. tmybby
    • one year ago
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    What is the absolute vale of the number? 3+i

  13. tmybby
    • one year ago
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    value*

  14. mathstudent55
    • one year ago
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    |dw:1369335059581:dw|

  15. tmybby
    • one year ago
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    My answer choices are square root of 10, 4, 8, and square root of 3...

  16. mathstudent55
    • one year ago
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    Have you tried it?

  17. mathstudent55
    • one year ago
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    |dw:1369335293026:dw|

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