Question

simplify-3x(4x-5)+3 and find its value for x=1/2

Answer 1

Here's ur answer buddy..
Take care always ##

Answer 2

:

Mark Me As Brainliest And Thank Me If The Answer Is Useful.

-- :

3x(4x−5)+3=12x^2−15x+3

x=3 gives the value 12(9)−15×3+3

                             =108−45+3

                              =66

x=1/2 gives the value 12(1/4)−15×(1/2)+3

                             =3−7.5+3

                              = - 3/2