Question

(2x+(-3y))² = _________​

Answer 1

Answer:

for this u should use the identity (a-b)^2 , that is a^2 - 2 ab + b^2  

              given (2x-3y)^2  

                        (2x)^2 - 2(2x)(3y) + (3y)^2

                         4x^2 - 12xy + 9y^2  

             hope this helps ...