Answer:
Explanation:
 -3d2a2 - 8
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "^-2" was replaced by "^(-2)".
Step by step solution :
Step 1 :
 d 
 Simplify —————
 a(-2) 
Equation at the end of step 1 :
 (0 - ((3 • da2) • d)) - 8
Step 2 :
Step 3 :
Pulling out like terms :
 3.1 Pull out like factors :
 -3d2a2 - 8 = -1 • (3d2a2 + 8) 
Final result :
 -3d2a2 - 8