Question

substitute z(x)=x2-4x+3 if x=1/2​

Answer 1

Answer:

1/2×2-4×1/2+3

1-2+3

1-5

=(-4)

Answer 2

Answer:5/4

Step-by-step explanation:

z(x)=x^2-4x +3

given x= 1/2

z(1/2)=1/4 -2 +3

       =1 -8 + 12/4

       =5/4