Question

5)
Determine nature of roots of the quadratic equations x + 2x - 9 = 0​

Answer 1

ANSWER

Given,

x

2

−2x−9=0

The standard quadratic equation is ax

2

+bx+c=0

Roots are given, x=

2a

−b±

b

2

−4ac

Here, x=

2×1

2±

4+4×1×9

x=

2

2±2

10

x=1+

10

,1−

10

Answer 2

Answer:

Answer. here , a = 1 , b= 2 , & , c = -9. 4 + 36 = 40. since , d = 40 > 0 hence , given equation has real and distinct roots