Question

(it) From the sum of a2 + 3ab-4b2 and 9a2 - 6ab + 2b2, subtract a2-6ab-4b2.​

Answer 1

Answer:

Step by Step Solution

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP1 Equation at the end of step 1

((a2) - 3ab) - 22b2

STEP2:Trying to factor a multi variable polynomial

 2.1    Factoring    a2 - 3ab - 4b2 

Try to factor this multi-variable trinomial using trial and error 

 Found a factorization  :  (a + b)•(a - 4b)

Final result :

(a + b) • (a - 4b)