0
That really depends on the situation. Just as there are cases where fractional numbers make sense and others where they don't, and just as there are cases where negative numbers make sense and others where they dont, likewise, there are situations in which complex numbers (with an imaginary part) make sense, and others in which they don't. In many practical cases they don't make sense; in this case, the non-real solution is an indication that there is no practical solution. Example: Use the quadratic formula to determine at what time an object, thrown upwards, will reach a certain height. If you get a complex solution (the discriminant is negative), this means the object will NEVER reach the specified height; it will fall back down before it reaches the desired height.
In this case, the variable "time" can only have real values - imaginary values don't make physical sense. However, please note that there are also situations in which complex numbers DO make sense.
What else can I help you with?
How can you find the complex solutions of any quadratic equation?
I suggest you use the quadratic formula.
Solve this quadratic equation x2 plus 5x plus 3 equals 0?
I suggest you use the quadratic formula. In this case, a = 1, b = 5, c = 3.
What are the roots of the equation 2xsquare -4x -1 0?
I suggest you apply the quadratic formula (a = 2, b = -4, c = -1).
What are the steps to solving a quadratic equation?
In general, there are two steps in solving a given quadratic equation in standard form ax^2 + bx + c = 0. If a = 1, the process is much simpler. The first step is making sure that the equation can be factored? How? In general, it is hard to know in advance if a quadratic equation is factorable. I suggest that you use first the new Diagonal Sum Method to solve the equation. It is fast and convenient and can directly give the 2 roots in the form of 2 fractions. without having to factor the equation. If this method fails, then you can conclude that the equation is not factorable, and consequently, the quadratic formula must be used. See book titled:" New methods for solving quadratic equations and inequalities" (Trafford Publishing 2009) The second step is solving the equation by the quadratic formula. This book also introduces a new improved quadratic formula, that is easier to remember by relating the formula to the x-intercepts with the parabola graph of the quadratic function.
What two numbers have a product of 20 and a sum of 13?
There are no integer answers for your question. I suggest using the quadratic equation is is y=b±√b²-4(a*c)∕2*a
How many roots can a quadratic function have?
The answer is two. Despite its name seems to suggest something to do with four, in a quadratic equation the unknown appears at most to the power of two and so is said to be of second degree. The theorem than pertains here is that the number of roots an equation has is equal to its degrees. However, some of the roots can be repeated - an nth degree equation need not have n different roots. Also the roots do not have to be real. However complex roots ( no real) come in pairs so an equation of odd degree must have at least one real root. A quadratic possibly has no real roots.
What is the square root of 2x plus 1 equals 3?
The answer will depend on how far the square root sign goes.If you want to solve for "x", I suggest you isolate the square root on the left (if it only covers the "2x" part, move the "1" to the other side of the equation). Then, if you square both sides of the equation, you get a formula which you can easily convert to a form which can be solved with the quadratic equation.
When was the quadratic equation developed?
The earliest reference to quadratics was by the ancient Egyptians who used them to assist with land administration and taxation. They were good at recording things though, so there is nothing to suggest an earlier civilization didn't use them but we have no evidence of it.
Is battery acid a neutral solution?
No. As the term might suggest, it is an acidic solution.
How do you solve 3x squared minus 2x plus 7 equals 0?
I suggest you use the quadratic formula, with a = 3, b = -2, c = 7.
Possible solution for a 2000 Ford Taurus with a high idol?
I suggest you stop worshipping your car!
i am disatisfiedd with dish network, suggest me an alternative solution.?
For satellite your main other option is DirectTV.
