Question

factorise 3x²-4√3x+4

Answer 1

Answer:

3x

2

−4

3

x+4=0

a=3,b=−4

3

,c=4

Discriminant D=b

2

−4ac

=(−4

3

)

2

−4(3)(4)=48−48=0

⇒D=0

⇒ Two roots are equal.

The roots are

=

2a

−b±

D

=

2×3

4

3

±0

=

3

2

,

3

2

Hence, the roots are

3

2

and

3

2