Question

factorize 1b ( a+b)² - a (a-3b)²​

Answer 1

Answer:

 b3 - 7b2a + 7ba2 - a3

Step-by-step explanation:

 (b • ((b + a)2)) -  a • (a - 3b)2

 b • (b + a)2 -  a • (a - 3b)2