Question

Factorise algebraic expressions of the term a²+3ab-4b²​

Answer 1

Step-by-step explanation:

{ by algebraic identity }

( a - b )² = a²+2ab - b²

a² + 9 x a² x b² - 16b²

a² ( 9b²- 16b²

Answer 2

Factors of -4(ab)^2= 4ab, -ab

a^2-ab+4ab-4b^2
a(a-b)+4b(a-b)
(a-b) (a-+4b)