Discriminant

Determine the discriminant of the equation:

7x**2-x+7=1 ; ;

Result

D =  -167

Solution:

Solution in text D =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




To solve this example are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation?

Next similar examples:

  1. Variations 4/2
    pantagram_1 Determine the number of items when the count of variations of fourth class without repeating is 600 times larger than the count of variations of second class without repetition.
  2. Roots
    parabola Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
  3. Equation
    calculator_2 Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
  4. Quadratic equation
    kvadrat_2 Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
  5. Quadratic function 2
    parabola1 Which of the points belong function f:y= 2x2- 3x + 1 : A(-2, 15) B (3,10) C (1,4)
  6. Combinations
    trezor_1 How many elements can form six times more combinations fourth class than combination of the second class?
  7. Expressions 3
    parabola2_1 If k(x+6)= 4x2 + 20, what is k(10)=?
  8. Product
    floring The product of two consecutive odd numbers is 8463. What are this numbers?
  9. Tubes
    pipes_1 Iron tubes in the warehouse are stored in layers so that each tube top layer fit into the gaps of the lower layer. How many layers are needed to deposit 100 tubes if top layer has 9 tubes? How many tubes are in bottom layer of tubes?
  10. Expression with powers
    eq222_9 If x-1/x=5, find the value of x4+1/x4
  11. Combinations
    math_2 From how many elements we can create 990 combinations 2nd class without repeating?
  12. Equation with abs value
    abs_graph How many solutions has the equation ? in the real numbers?
  13. Quadratic inequation
    eq2_8 If 5x + x² > 100, then x is not
  14. Complex number coordinates
    complex_numbers Which coordinates show the location of -2+3i
  15. Calculation
    pocty How much is sum of square root of six and the square root of 225?
  16. Seats
    divadlo_2 Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row
  17. Theorem prove
    thales_1 We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?