Question

Find the roots of the quadratic equation 3x3 - 5x + 2 = 0 using the quadratic formula​

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.