# Roots

Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: Result

q =  4.05
x =  -0.9

#### Solution:  Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### To solve this verbal math problem are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation?

## Next similar examples: Quadratic equation ? has roots x1 = -26 and x2 = -86. Calculate the coefficients b and c. Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
3. Equation Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
4. Discriminant Determine the discriminant of the equation: ?
5. Variations 4/2 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.
6. Tubes 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?
7. Combinations How many elements can form six times more combinations fourth class than combination of the second class?
8. Quadratic function 2 Which of the points belong function f:y= 2x2- 3x + 1 : A(-2, 15) B (3,10) C (1,4)
9. Solve 3 Solve quadratic equation: (6n+1) (4n-1) = 3n2
10. Combinations From how many elements we can create 990 combinations 2nd class without repeating?
11. Algebra X+y=5, find xy (find the product of x and y if x+y = 5)
12. Cylinder diameter The surface of the cylinder is 149 cm2. The cylinder height is 6 cm. What is the diameter of this cylinder? Solve quadratic equation: 2x2-58x+396=0 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? A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy? Find 75th percentile for 30,42,42,46,46,46,50,50,54 There is geometric sequence with a1=5.7 and quotient q=-2.5. Calculate a17.