Question

factorise(2x-3y)^2 - 4y^2​

Answer 1

Answer:

factors

Step-by-step explanation:

STEP1:

 1.1    Evaluate :  (2x-3y)2   =  4x2-12xy+9y2   1.2    Evaluate :  (x+4y)2   =  x2+8xy+16y2 

Trying to factor a multi variable polynomial :

 1.3    Factoring    3x2 - 20xy - 7y2 

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

 Found a factorization  :  (x - 7y)•(3x + y)

Final result :

(x - 7y) • (3x + y)