Aquadratic equation has exactly one real number solution. which is the value of its discriminant? −1 0 1 2

The correct answer option is 0.

Step-by-step explanation:

We know the quadratic formula that we use to find the roots of a quadratic equation:

The discriminant in this formula is the part underneath the square root symbol i.e. b^2-4ac.

For a quadratic equation to have exactly one real number solution, the discriminant must be zero.

As we can see the + and - sign appearing before the discriminant here so for one real number solution, these plus and minus signs need to be removed which can only happen if we have a value of zero.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this