Equation

Equation 2x**2+bx +187 =0 ; ; has one root x1 = 8. Determine the coefficient b and the second root x2.

Result

b =  -39.38
x2 =  11.69

Solution:

Solution in text b =
Solution in text x__2 =
Solution in text x__2 = : Nr. 1







Leave us a comment of this math problem 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 verbal math problem are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation?

Next similar math problems:

  1. Roots
    parabola Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
  2. 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.
  3. Discriminant
    Quadratic_equation_discriminant Determine the discriminant of the equation: ?
  4. Quadratic equation
    kvadrat_2 Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
  5. Combinations
    trezor_1 How many elements can form six times more combinations fourth class than combination of the second class?
  6. Solve 3
    eq2_4 Solve quadratic equation: (6n+1) (4n-1) = 3n2
  7. Quadratic function 2
    parabola1 Which of the points belong function f:y= 2x2- 3x + 1 : A(-2, 15) B (3,10) C (1,4)
  8. Combinations
    math_2 From how many elements we can create 990 combinations 2nd class without repeating?
  9. Expression with powers
    eq222_9 If x-1/x=5, find the value of x4+1/x4
  10. Cylinder diameter
    valec.JPG The surface of the cylinder is 149 cm2. The cylinder height is 6 cm. What is the diameter of this cylinder?
  11. 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?
  12. AS sequence
    AP In an arithmetic sequence is given the difference d = -3 and a71 = 455. a) Determine the value of a62 b) Determine the sum of 71 members.
  13. Six terms
    sequence_geo_3 Find the first six terms of the sequence a1 = -3, an = 2 * an-1
  14. Sequence 3
    75 Write the first 5 members of an arithmetic sequence: a4=-35, a11=-105.
  15. Theorem prove
    thales_1 We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
  16. Fish tank
    zebra_fish A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy?
  17. Median and modus
    dice_3 Radka made 50 throws with a dice. The table saw fit individual dice's wall frequency: Wall Number: 1 2 3 4 5 6 frequency: 8 7 5 11 6 13 Calculate the modus and median of the wall numbers that Radka fell.