Quadratic Equation: Find Roots Range

In summary, the conversation is about finding the range of the roots of a quadratic equation given certain conditions. The individual being addressed is asked to show their own work and not to cheat.
  • #1
antiparticle
7
0
If a(12a+5b+2c)>0 and the equation ax^2+bx+c=0 has roots y and z , then find out the range of the roots of the equation ...
 
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  • #2
For brainy students!
 
  • #3
Is this a homework question of yours?
 
  • #4
Insulting our intelligence isn't very nice if you're asking for help!
 
  • #5
Well, so you have got:
[tex]ay^{2}+by+c=0[/tex]
[tex]az^{2}+bz+c=0[/tex]
Along with your inequality.

Have you any brainy suggestions of your own?
 
  • #6
antiparticle said:
If a(12a+5b+2c)>0 and the equation ax^2+bx+c=0 has roots y and z , then find out the range of the roots of the equation ...

antiparticle, as I told you in my warning just now as I moved this to the Homework Help forums, you MUST show your own work on this homework/coursework question. We do not do your work for you, and we do not help you cheat.

Show us your work.
 
  • #7
From the sum and the product rule of the quadratic equation we can easily get
12-5(y+z)+2yz>0..
and from this one we can get some conditions..
 

1. What is a quadratic equation?

A quadratic equation is a mathematical expression in the form of ax^2 + bx + c = 0, where a, b, and c are constants and x is the variable. It represents a parabola when graphed and has a degree of 2.

2. How do I find the roots of a quadratic equation?

The roots of a quadratic equation can be found by using the quadratic formula, which is x = (-b ± √(b^2 - 4ac)) / 2a. This formula gives two possible values for x, known as the roots or solutions of the equation.

3. What is the meaning of "range" in a quadratic equation?

The range in a quadratic equation refers to the set of all possible values that the function can output. In other words, it is the set of all y-values that correspond to the x-values on the graph of the equation.

4. How do I determine the range of a quadratic equation?

To determine the range of a quadratic equation, you can either graph the equation and observe the y-values, or you can use the vertex form of the equation, y = a(x-h)^2 + k, to find the minimum or maximum value of the function. The range will be all values of y that are equal to or greater than the minimum (if the parabola opens upwards) or equal to or less than the maximum (if the parabola opens downwards).

5. Can a quadratic equation have no real roots?

Yes, a quadratic equation can have no real roots if the discriminant (b^2 - 4ac) is negative. In this case, the solutions will be complex numbers (numbers with a real and imaginary part) instead of real numbers, and the parabola will not intersect the x-axis.

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