Question

add the following using horizontal method 3ab+12a square -3b square-2,a square-3a square b+2and-b square+12a square b​

Answer 1

Answer:

(3ab+12a²-3b²-2) + (a²-3a²b+2) + (-b²+12a²b)

Step-by-step explanation:

3ab+13a²-4b²+9a²b Ans