Answer:
-a2 • (2a - b - 3c)
Step-by-step explanation:
Equation at the end of step 1 :
((4ab - 23a2) + 12ac)
————————————————————— • a
4
Step 2 :
-8a2 + 4ab + 12ac
Simplify —————————————————
4
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
-8a2 + 4ab + 12ac = -4a • (2a - b - 3c)
Equation at the end of step 3 :
-a • (2a - b - 3c) • a
Step 4 :
Multiplying exponential expressions :
4.1 a1 multiplied by a1 = a(1 + 1) = a2
Final result :
-a2 • (2a - b - 3c)
