Respuesta :

Answer:

Step-by-step explanation:

first of all use ^ to indicate exponents

simplify

3ab-a^2=3a^2

subtract a^2 to 3a^2

3ab+2a^2

Answer:

-a(a-2b-3)

Step-by-step explanation:

Step 1: Pull out like-factors.

-a^2+ 2ab+3a

Step 2:

-a^+ -a + a + 2ab + 3a

Step 4:

-a(a-2b-3)