Question

what is a solution of a quadratic equation any quadratic equation has at most two roots why​

Answer 1

Answer:

This is a proof that doesn't rely on any theorem: assume (x−a)(x−b)=(x−a′)(x−b′). Then putting x=0 you have ab=a′b′ and putting x=1 you have a+b=a′+b′. This implies that (a−b)2=(a+b)2−4ab=(a′−b′)2. From a+b=a′+b′ and a−b=±(a′−b′) you can derive {a,b}={a′,b′}. –

Answer 2

Answer:

A solution is the value in set of Real numbers for which the expression becomes 0. A quadratic equation has atmost 2 roots because it's degree is two