Question

find. the roots of a quadratic polynomials 3x*x-5x+2=0 ​

Answer 1

Answer:

Given, 3x  

2

+5x+2=0

On comparing this equation with ax  

2

+bx+c=0, we get a=3,b=5 and c=2

Now, b  

2

−4ac=(5)  

2

−4×3×2

=25=24

=1

x=  

2a

−b±  

b  

2

−4ac

​  

 

​  

 

==  

2×3

−5±  

1

​  

 

​  

 

=  

6

−5±1

​  

 

x=  

6

−5+1

​  

 

x=  

6

−5−1

​  

 

∴  

3

−2

​  

 and −1 are the roots of the given quadratic equation.

Step-by-step explanation: