Question

(3x+2y)²-2(3x+2y)(x+y)+(x+2y)²​

Answer 1

Step-by-step explanation:

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

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

9x^2+4y^2+12xy-6x^2+6xy+4y^2+4xy+x^2+4y^2+4xy

4x^2+12y^2+26xy