Question

1. In ax’ +bx+c=0,00, delta =b² - 4ac is called discriminant. If theroots are equal, then
2. If the roots having opposite signs, then

3.If both the roots are negative, then

4. if both roots are positive then

a. delta = 0
b. -b/a greater than 0
c. c/a less than 0
d. -b/a less than 0​

Answer 1

Step-by-step explanation:

=> The general form of quadratic equation is

ax²+bx+c=0

=> ∆=b²-4ac is called discriminate.

=> The formula of quadratic equation is

(alpha,beta)= (-b±√∆) /2a

=> When, ∆>0

So, it has a two real roots & opposite signs.

( c/a >0 , -b/a <0 )

=>When, ∆=0

So, it has a one root & equal signs.

( c/a >0 , -b/a >0 )

=> When, ∆<0

So, it has a two Complex roots & opposite signs.

( c/a >0 , -b/a <0 )