Question

wer the following questions :
1. Write the condition for the roots to become equal in the equation or + bx+c=0.(2.b.care
real, a = 0).​

Answer 1

Answer:

they given quadratic equation is ax2+bx+c=0

let 2 roots be a and b

a=-b

a+b-a-b

-b+b=a-b

0=a-b

therefore b=0..(1)

we have one root negative so,

therefore ab<0

therefore ac<0

So,here either c or a will be negative. Means ,a and c will be having opposite sign.a>0,c<0 or c>0,a<0 and b=0