Answer:

Step-by-step explanation:
Given

Required
Solve for d

Collect Like Terms


Take LCM



Make d the subject

Distributive property
a(b+c)+ab+ac
a(b-c)=ab-ac
(6z^2-4z+1)(8-3z)
move for nicety
(8-3z)(6z^2-4z+1)
distribute
8(6z^2-4z+1)-3z(6z^2-4z+1)=
48z^2-32z+8-18z^3+12z^2-3z=
-18z^3+48z^2+12z^2-32z-3z+8=
-18z^3+60z-35z+8
D. 22+(-3). Hope this helps.
Answer:
it either 1/2 or -1/2
Step-by-step explanation: