Question

which of the following equation has the sum of the root-5? x2-3x-5=0​

Answer 1

Answer:

The standard form of the quadratic equation is

ax2+bx+c=0

, where x is an unknown variable,

a,b,and c

are constants and

a≠0

For the standard equation,

b2−4ac

is known as Discriminant and is abbreviated as D.

If the roots of the above equation are

α andβ

then the sum of roots

α+β=−ba