Question

(-4ab+8a-2) - (-4ab-9)

Answer 1

-a2 • (2a - b - 3c)

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)