Question

3x(4x-5)+3 the value of x is 3 and value of x is ½​

Answer 1

Here is the answer in the attachment above

hope it helps you

Answer 2

Answer:

When,

x value is 3 then answer is 66

x value is ½​ then answer is -3/2

Step-by-step explanation:

Lets take when x = 3

then

3x(4x-5)+3 =

3(3)(12-5)+3 =

9 (7) + 3 =

63 + 3 =

= 66

Now,  x = ½​

then

3x(4x-5)+3 =

3(½​)(4(½​) - 5) + 3 =

(3/2) (2-5) + 3 =

(3/2) (-3) + 3 =

(-9/2) + 3 =

(-9 + 6 / 2) =

= -3/2